Home / 99,987.56-137,962.26-59,688.44

Finding the Fourth Proportional to 99,987.56, 137,962.26 and 59,688.44

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Solution

The fourth proportional to 99,987.56, 137,962.26 and 59,688.44 is: 82,357.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,987.56 : 137,962.26 = 59,688.44 : x
  2. Step 2: Convert to fraction form
    99,987.56/137,962.26 = 59,688.44/x
  3. Step 3: Cross multiply
    99,987.56x = 137,962.26 × 59,688.44
  4. Step 4: Simplify right side
    99,987.56x = 8,234,752,078.27
  5. Step 5: Solve for x
    x = 8,234,752,078.27/99,987.56
  6. Step 6: Final answer
    x = 82,357.77

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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.