Home / 86,861.57-130,122.66-59,839.14

Finding the Fourth Proportional to 86,861.57, 130,122.66 and 59,839.14

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Solution

The fourth proportional to 86,861.57, 130,122.66 and 59,839.14 is: 89,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.57 : 130,122.66 = 59,839.14 : x
  2. Step 2: Convert to fraction form
    86,861.57/130,122.66 = 59,839.14/x
  3. Step 3: Cross multiply
    86,861.57x = 130,122.66 × 59,839.14
  4. Step 4: Simplify right side
    86,861.57x = 7,786,428,068.91
  5. Step 5: Solve for x
    x = 7,786,428,068.91/86,861.57
  6. Step 6: Final answer
    x = 89,641.81

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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.