Home / 87,899.40-131,798.22-77,390.52

Finding the Fourth Proportional to 87,899.40, 131,798.22 and 77,390.52

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Solution

The fourth proportional to 87,899.40, 131,798.22 and 77,390.52 is: 116,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899.40 : 131,798.22 = 77,390.52 : x
  2. Step 2: Convert to fraction form
    87,899.40/131,798.22 = 77,390.52/x
  3. Step 3: Cross multiply
    87,899.40x = 131,798.22 × 77,390.52
  4. Step 4: Simplify right side
    87,899.40x = 10,199,932,780.87
  5. Step 5: Solve for x
    x = 10,199,932,780.87/87,899.40
  6. Step 6: Final answer
    x = 116,040.98

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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.