Home / 99,514.88-137,349.45-56,498.41

Finding the Fourth Proportional to 99,514.88, 137,349.45 and 56,498.41

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Solution

The fourth proportional to 99,514.88, 137,349.45 and 56,498.41 is: 77,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,514.88 : 137,349.45 = 56,498.41 : x
  2. Step 2: Convert to fraction form
    99,514.88/137,349.45 = 56,498.41/x
  3. Step 3: Cross multiply
    99,514.88x = 137,349.45 × 56,498.41
  4. Step 4: Simplify right side
    99,514.88x = 7,760,025,552.16
  5. Step 5: Solve for x
    x = 7,760,025,552.16/99,514.88
  6. Step 6: Final answer
    x = 77,978.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.