Home / 66,635.28-91,960.08-38,345.04

Finding the Fourth Proportional to 66,635.28, 91,960.08 and 38,345.04

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Solution

The fourth proportional to 66,635.28, 91,960.08 and 38,345.04 is: 52,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,635.28 : 91,960.08 = 38,345.04 : x
  2. Step 2: Convert to fraction form
    66,635.28/91,960.08 = 38,345.04/x
  3. Step 3: Cross multiply
    66,635.28x = 91,960.08 × 38,345.04
  4. Step 4: Simplify right side
    66,635.28x = 3,526,212,946.00
  5. Step 5: Solve for x
    x = 3,526,212,946.00/66,635.28
  6. Step 6: Final answer
    x = 52,918.11

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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.