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Finding the Fourth Proportional to 61,702.97, 85,150.65 and 36,209.76

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Solution

The fourth proportional to 61,702.97, 85,150.65 and 36,209.76 is: 49,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,702.97 : 85,150.65 = 36,209.76 : x
  2. Step 2: Convert to fraction form
    61,702.97/85,150.65 = 36,209.76/x
  3. Step 3: Cross multiply
    61,702.97x = 85,150.65 × 36,209.76
  4. Step 4: Simplify right side
    61,702.97x = 3,083,284,600.34
  5. Step 5: Solve for x
    x = 3,083,284,600.34/61,702.97
  6. Step 6: Final answer
    x = 49,969.80

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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.