Home / 61,982.12-85,533-33,687.20

Finding the Fourth Proportional to 61,982.12, 85,533 and 33,687.20

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Solution

The fourth proportional to 61,982.12, 85,533 and 33,687.20 is: 46,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,982.12 : 85,533 = 33,687.20 : x
  2. Step 2: Convert to fraction form
    61,982.12/85,533 = 33,687.20/x
  3. Step 3: Cross multiply
    61,982.12x = 85,533 × 33,687.20
  4. Step 4: Simplify right side
    61,982.12x = 2,881,367,277.60
  5. Step 5: Solve for x
    x = 2,881,367,277.60/61,982.12
  6. Step 6: Final answer
    x = 46,487.07

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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.