Home / 83,669.10-125,333.55-51,981.90

Finding the Fourth Proportional to 83,669.10, 125,333.55 and 51,981.90

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Solution

The fourth proportional to 83,669.10, 125,333.55 and 51,981.90 is: 77,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,669.10 : 125,333.55 = 51,981.90 : x
  2. Step 2: Convert to fraction form
    83,669.10/125,333.55 = 51,981.90/x
  3. Step 3: Cross multiply
    83,669.10x = 125,333.55 × 51,981.90
  4. Step 4: Simplify right side
    83,669.10x = 6,515,076,062.75
  5. Step 5: Solve for x
    x = 6,515,076,062.75/83,669.10
  6. Step 6: Final answer
    x = 77,867.17

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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.