Home / 48,709.20-72,934.20-31,083.60

Finding the Fourth Proportional to 48,709.20, 72,934.20 and 31,083.60

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Solution

The fourth proportional to 48,709.20, 72,934.20 and 31,083.60 is: 46,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,709.20 : 72,934.20 = 31,083.60 : x
  2. Step 2: Convert to fraction form
    48,709.20/72,934.20 = 31,083.60/x
  3. Step 3: Cross multiply
    48,709.20x = 72,934.20 × 31,083.60
  4. Step 4: Simplify right side
    48,709.20x = 2,267,057,499.12
  5. Step 5: Solve for x
    x = 2,267,057,499.12/48,709.20
  6. Step 6: Final answer
    x = 46,542.70

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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.