Home / 99,738.30-137,620-59,455.81

Finding the Fourth Proportional to 99,738.30, 137,620 and 59,455.81

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Solution

The fourth proportional to 99,738.30, 137,620 and 59,455.81 is: 82,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,738.30 : 137,620 = 59,455.81 : x
  2. Step 2: Convert to fraction form
    99,738.30/137,620 = 59,455.81/x
  3. Step 3: Cross multiply
    99,738.30x = 137,620 × 59,455.81
  4. Step 4: Simplify right side
    99,738.30x = 8,182,308,572.20
  5. Step 5: Solve for x
    x = 8,182,308,572.20/99,738.30
  6. Step 6: Final answer
    x = 82,037.78

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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.