Home / 89,285.12-123,217.32-53,468.28

Finding the Fourth Proportional to 89,285.12, 123,217.32 and 53,468.28

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Solution

The fourth proportional to 89,285.12, 123,217.32 and 53,468.28 is: 73,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.12 : 123,217.32 = 53,468.28 : x
  2. Step 2: Convert to fraction form
    89,285.12/123,217.32 = 53,468.28/x
  3. Step 3: Cross multiply
    89,285.12x = 123,217.32 × 53,468.28
  4. Step 4: Simplify right side
    89,285.12x = 6,588,218,166.61
  5. Step 5: Solve for x
    x = 6,588,218,166.61/89,285.12
  6. Step 6: Final answer
    x = 73,788.53

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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.