Home / 86,715.17-130,085.15-26,748.71

Finding the Fourth Proportional to 86,715.17, 130,085.15 and 26,748.71

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Solution

The fourth proportional to 86,715.17, 130,085.15 and 26,748.71 is: 40,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,715.17 : 130,085.15 = 26,748.71 : x
  2. Step 2: Convert to fraction form
    86,715.17/130,085.15 = 26,748.71/x
  3. Step 3: Cross multiply
    86,715.17x = 130,085.15 × 26,748.71
  4. Step 4: Simplify right side
    86,715.17x = 3,479,609,694.32
  5. Step 5: Solve for x
    x = 3,479,609,694.32/86,715.17
  6. Step 6: Final answer
    x = 40,126.89

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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.