Home / 99,340.92-137,091.18-54,018.84

Finding the Fourth Proportional to 99,340.92, 137,091.18 and 54,018.84

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Solution

The fourth proportional to 99,340.92, 137,091.18 and 54,018.84 is: 74,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,340.92 : 137,091.18 = 54,018.84 : x
  2. Step 2: Convert to fraction form
    99,340.92/137,091.18 = 54,018.84/x
  3. Step 3: Cross multiply
    99,340.92x = 137,091.18 × 54,018.84
  4. Step 4: Simplify right side
    99,340.92x = 7,405,506,517.83
  5. Step 5: Solve for x
    x = 7,405,506,517.83/99,340.92
  6. Step 6: Final answer
    x = 74,546.39

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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.