Home / 99,040.47-136,677.72-60,780.88

Finding the Fourth Proportional to 99,040.47, 136,677.72 and 60,780.88

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Solution

The fourth proportional to 99,040.47, 136,677.72 and 60,780.88 is: 83,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.47 : 136,677.72 = 60,780.88 : x
  2. Step 2: Convert to fraction form
    99,040.47/136,677.72 = 60,780.88/x
  3. Step 3: Cross multiply
    99,040.47x = 136,677.72 × 60,780.88
  4. Step 4: Simplify right side
    99,040.47x = 8,307,391,794.09
  5. Step 5: Solve for x
    x = 8,307,391,794.09/99,040.47
  6. Step 6: Final answer
    x = 83,878.76

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1.5x scale

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.