Home / 66,225.93-91,354.38-39,377.10

Finding the Fourth Proportional to 66,225.93, 91,354.38 and 39,377.10

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Solution

The fourth proportional to 66,225.93, 91,354.38 and 39,377.10 is: 54,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.93 : 91,354.38 = 39,377.10 : x
  2. Step 2: Convert to fraction form
    66,225.93/91,354.38 = 39,377.10/x
  3. Step 3: Cross multiply
    66,225.93x = 91,354.38 × 39,377.10
  4. Step 4: Simplify right side
    66,225.93x = 3,597,270,359.81
  5. Step 5: Solve for x
    x = 3,597,270,359.81/66,225.93
  6. Step 6: Final answer
    x = 54,318.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.