Home / 99,905.61-137,865.47-54,582.87

Finding the Fourth Proportional to 99,905.61, 137,865.47 and 54,582.87

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Solution

The fourth proportional to 99,905.61, 137,865.47 and 54,582.87 is: 75,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,905.61 : 137,865.47 = 54,582.87 : x
  2. Step 2: Convert to fraction form
    99,905.61/137,865.47 = 54,582.87/x
  3. Step 3: Cross multiply
    99,905.61x = 137,865.47 × 54,582.87
  4. Step 4: Simplify right side
    99,905.61x = 7,525,092,753.58
  5. Step 5: Solve for x
    x = 7,525,092,753.58/99,905.61
  6. Step 6: Final answer
    x = 75,322.02

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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.