Home / 91,815.30-137,722.95-62,072.10

Finding the Fourth Proportional to 91,815.30, 137,722.95 and 62,072.10

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Solution

The fourth proportional to 91,815.30, 137,722.95 and 62,072.10 is: 93,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,815.30 : 137,722.95 = 62,072.10 : x
  2. Step 2: Convert to fraction form
    91,815.30/137,722.95 = 62,072.10/x
  3. Step 3: Cross multiply
    91,815.30x = 137,722.95 × 62,072.10
  4. Step 4: Simplify right side
    91,815.30x = 8,548,752,724.70
  5. Step 5: Solve for x
    x = 8,548,752,724.70/91,815.30
  6. Step 6: Final answer
    x = 93,108.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.