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Finding the Fourth Proportional to 41,987.92, 62,981.80 and 28,800.36

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Solution

The fourth proportional to 41,987.92, 62,981.80 and 28,800.36 is: 43,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,987.92 : 62,981.80 = 28,800.36 : x
  2. Step 2: Convert to fraction form
    41,987.92/62,981.80 = 28,800.36/x
  3. Step 3: Cross multiply
    41,987.92x = 62,981.80 × 28,800.36
  4. Step 4: Simplify right side
    41,987.92x = 1,813,898,513.45
  5. Step 5: Solve for x
    x = 1,813,898,513.45/41,987.92
  6. Step 6: Final answer
    x = 43,200.49

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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.