Home / 345,717.72-518,572.68-89,549.16

Finding the Fourth Proportional to 345,717.72, 518,572.68 and 89,549.16

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Solution

The fourth proportional to 345,717.72, 518,572.68 and 89,549.16 is: 134,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,717.72 : 518,572.68 = 89,549.16 : x
  2. Step 2: Convert to fraction form
    345,717.72/518,572.68 = 89,549.16/x
  3. Step 3: Cross multiply
    345,717.72x = 518,572.68 × 89,549.16
  4. Step 4: Simplify right side
    345,717.72x = 46,437,747,892.95
  5. Step 5: Solve for x
    x = 46,437,747,892.95/345,717.72
  6. Step 6: Final answer
    x = 134,322.73

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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.