Home / 89,156.16-133,732.89-21,688.70

Finding the Fourth Proportional to 89,156.16, 133,732.89 and 21,688.70

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Solution

The fourth proportional to 89,156.16, 133,732.89 and 21,688.70 is: 32,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,156.16 : 133,732.89 = 21,688.70 : x
  2. Step 2: Convert to fraction form
    89,156.16/133,732.89 = 21,688.70/x
  3. Step 3: Cross multiply
    89,156.16x = 133,732.89 × 21,688.70
  4. Step 4: Simplify right side
    89,156.16x = 2,900,491,862.68
  5. Step 5: Solve for x
    x = 2,900,491,862.68/89,156.16
  6. Step 6: Final answer
    x = 32,532.71

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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.