Home / 66,938.27-92,358.51-38,643.89

Finding the Fourth Proportional to 66,938.27, 92,358.51 and 38,643.89

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Solution

The fourth proportional to 66,938.27, 92,358.51 and 38,643.89 is: 53,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.27 : 92,358.51 = 38,643.89 : x
  2. Step 2: Convert to fraction form
    66,938.27/92,358.51 = 38,643.89/x
  3. Step 3: Cross multiply
    66,938.27x = 92,358.51 × 38,643.89
  4. Step 4: Simplify right side
    66,938.27x = 3,569,092,101.00
  5. Step 5: Solve for x
    x = 3,569,092,101.00/66,938.27
  6. Step 6: Final answer
    x = 53,319.16

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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.