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Finding the Fourth Proportional to 83,487.75, 125,248.02 and 30,897.69

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Solution

The fourth proportional to 83,487.75, 125,248.02 and 30,897.69 is: 46,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,487.75 : 125,248.02 = 30,897.69 : x
  2. Step 2: Convert to fraction form
    83,487.75/125,248.02 = 30,897.69/x
  3. Step 3: Cross multiply
    83,487.75x = 125,248.02 × 30,897.69
  4. Step 4: Simplify right side
    83,487.75x = 3,869,874,495.07
  5. Step 5: Solve for x
    x = 3,869,874,495.07/83,487.75
  6. Step 6: Final answer
    x = 46,352.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.