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Finding the Fourth Proportional to 48,381.57, 72,553.70 and 18,795.51

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Solution

The fourth proportional to 48,381.57, 72,553.70 and 18,795.51 is: 28,186.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,381.57 : 72,553.70 = 18,795.51 : x
  2. Step 2: Convert to fraction form
    48,381.57/72,553.70 = 18,795.51/x
  3. Step 3: Cross multiply
    48,381.57x = 72,553.70 × 18,795.51
  4. Step 4: Simplify right side
    48,381.57x = 1,363,683,793.89
  5. Step 5: Solve for x
    x = 1,363,683,793.89/48,381.57
  6. Step 6: Final answer
    x = 28,186.02

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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.