Home / 60,741.04-91,112.16-21,299.12

Finding the Fourth Proportional to 60,741.04, 91,112.16 and 21,299.12

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Solution

The fourth proportional to 60,741.04, 91,112.16 and 21,299.12 is: 31,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,741.04 : 91,112.16 = 21,299.12 : x
  2. Step 2: Convert to fraction form
    60,741.04/91,112.16 = 21,299.12/x
  3. Step 3: Cross multiply
    60,741.04x = 91,112.16 × 21,299.12
  4. Step 4: Simplify right side
    60,741.04x = 1,940,608,829.30
  5. Step 5: Solve for x
    x = 1,940,608,829.30/60,741.04
  6. Step 6: Final answer
    x = 31,948.89

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.