Home / 48,385.49-72,550.08-18,768.78

Finding the Fourth Proportional to 48,385.49, 72,550.08 and 18,768.78

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Solution

The fourth proportional to 48,385.49, 72,550.08 and 18,768.78 is: 28,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,385.49 : 72,550.08 = 18,768.78 : x
  2. Step 2: Convert to fraction form
    48,385.49/72,550.08 = 18,768.78/x
  3. Step 3: Cross multiply
    48,385.49x = 72,550.08 × 18,768.78
  4. Step 4: Simplify right side
    48,385.49x = 1,361,676,490.50
  5. Step 5: Solve for x
    x = 1,361,676,490.50/48,385.49
  6. Step 6: Final answer
    x = 28,142.25

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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.