Home / 58,119.28-87,192.72-31,491.88

Finding the Fourth Proportional to 58,119.28, 87,192.72 and 31,491.88

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Solution

The fourth proportional to 58,119.28, 87,192.72 and 31,491.88 is: 47,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,119.28 : 87,192.72 = 31,491.88 : x
  2. Step 2: Convert to fraction form
    58,119.28/87,192.72 = 31,491.88/x
  3. Step 3: Cross multiply
    58,119.28x = 87,192.72 × 31,491.88
  4. Step 4: Simplify right side
    58,119.28x = 2,745,862,675.11
  5. Step 5: Solve for x
    x = 2,745,862,675.11/58,119.28
  6. Step 6: Final answer
    x = 47,245.30

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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.