Home / 87,472.49-130,526.24-78,047.69

Finding the Fourth Proportional to 87,472.49, 130,526.24 and 78,047.69

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Solution

The fourth proportional to 87,472.49, 130,526.24 and 78,047.69 is: 116,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,472.49 : 130,526.24 = 78,047.69 : x
  2. Step 2: Convert to fraction form
    87,472.49/130,526.24 = 78,047.69/x
  3. Step 3: Cross multiply
    87,472.49x = 130,526.24 × 78,047.69
  4. Step 4: Simplify right side
    87,472.49x = 10,187,270,473.52
  5. Step 5: Solve for x
    x = 10,187,270,473.52/87,472.49
  6. Step 6: Final answer
    x = 116,462.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.