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Finding the Fourth Proportional to 48,385.57, 72,559.70 and 18,799.51

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Solution

The fourth proportional to 48,385.57, 72,559.70 and 18,799.51 is: 28,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,385.57 : 72,559.70 = 18,799.51 : x
  2. Step 2: Convert to fraction form
    48,385.57/72,559.70 = 18,799.51/x
  3. Step 3: Cross multiply
    48,385.57x = 72,559.70 × 18,799.51
  4. Step 4: Simplify right side
    48,385.57x = 1,364,086,711.75
  5. Step 5: Solve for x
    x = 1,364,086,711.75/48,385.57
  6. Step 6: Final answer
    x = 28,192.01

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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.