Home / 99,780.92-137,698.94-58,946.38

Finding the Fourth Proportional to 99,780.92, 137,698.94 and 58,946.38

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Solution

The fourth proportional to 99,780.92, 137,698.94 and 58,946.38 is: 81,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,780.92 : 137,698.94 = 58,946.38 : x
  2. Step 2: Convert to fraction form
    99,780.92/137,698.94 = 58,946.38/x
  3. Step 3: Cross multiply
    99,780.92x = 137,698.94 × 58,946.38
  4. Step 4: Simplify right side
    99,780.92x = 8,116,854,042.84
  5. Step 5: Solve for x
    x = 8,116,854,042.84/99,780.92
  6. Step 6: Final answer
    x = 81,346.75

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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.