Home / 72,621.10-108,640.05-62,868.70

Finding the Fourth Proportional to 72,621.10, 108,640.05 and 62,868.70

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Solution

The fourth proportional to 72,621.10, 108,640.05 and 62,868.70 is: 94,050.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621.10 : 108,640.05 = 62,868.70 : x
  2. Step 2: Convert to fraction form
    72,621.10/108,640.05 = 62,868.70/x
  3. Step 3: Cross multiply
    72,621.10x = 108,640.05 × 62,868.70
  4. Step 4: Simplify right side
    72,621.10x = 6,830,058,711.44
  5. Step 5: Solve for x
    x = 6,830,058,711.44/72,621.10
  6. Step 6: Final answer
    x = 94,050.61

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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.