Home / 72,454.20-108,681.30-62,431.80

Finding the Fourth Proportional to 72,454.20, 108,681.30 and 62,431.80

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Solution

The fourth proportional to 72,454.20, 108,681.30 and 62,431.80 is: 93,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,454.20 : 108,681.30 = 62,431.80 : x
  2. Step 2: Convert to fraction form
    72,454.20/108,681.30 = 62,431.80/x
  3. Step 3: Cross multiply
    72,454.20x = 108,681.30 × 62,431.80
  4. Step 4: Simplify right side
    72,454.20x = 6,785,169,185.34
  5. Step 5: Solve for x
    x = 6,785,169,185.34/72,454.20
  6. Step 6: Final answer
    x = 93,647.70

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1.5x scale

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.