Home / 99,939.68-137,941.25-56,944.52

Finding the Fourth Proportional to 99,939.68, 137,941.25 and 56,944.52

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Solution

The fourth proportional to 99,939.68, 137,941.25 and 56,944.52 is: 78,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,939.68 : 137,941.25 = 56,944.52 : x
  2. Step 2: Convert to fraction form
    99,939.68/137,941.25 = 56,944.52/x
  3. Step 3: Cross multiply
    99,939.68x = 137,941.25 × 56,944.52
  4. Step 4: Simplify right side
    99,939.68x = 7,854,998,269.45
  5. Step 5: Solve for x
    x = 7,854,998,269.45/99,939.68
  6. Step 6: Final answer
    x = 78,597.39

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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.