Home / 351,921.30-527,882.96-85,681.59

Finding the Fourth Proportional to 351,921.30, 527,882.96 and 85,681.59

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Solution

The fourth proportional to 351,921.30, 527,882.96 and 85,681.59 is: 128,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,921.30 : 527,882.96 = 85,681.59 : x
  2. Step 2: Convert to fraction form
    351,921.30/527,882.96 = 85,681.59/x
  3. Step 3: Cross multiply
    351,921.30x = 527,882.96 × 85,681.59
  4. Step 4: Simplify right side
    351,921.30x = 45,229,851,346.71
  5. Step 5: Solve for x
    x = 45,229,851,346.71/351,921.30
  6. Step 6: Final answer
    x = 128,522.63

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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.