Home / 48,252.80-72,379.20-45,718.40

Finding the Fourth Proportional to 48,252.80, 72,379.20 and 45,718.40

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Solution

The fourth proportional to 48,252.80, 72,379.20 and 45,718.40 is: 68,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,252.80 : 72,379.20 = 45,718.40 : x
  2. Step 2: Convert to fraction form
    48,252.80/72,379.20 = 45,718.40/x
  3. Step 3: Cross multiply
    48,252.80x = 72,379.20 × 45,718.40
  4. Step 4: Simplify right side
    48,252.80x = 3,309,061,217.28
  5. Step 5: Solve for x
    x = 3,309,061,217.28/48,252.80
  6. Step 6: Final answer
    x = 68,577.60

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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.