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Finding the Fourth Proportional to 72,203.93, 108,306.19 and 47,400.92

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Solution

The fourth proportional to 72,203.93, 108,306.19 and 47,400.92 is: 71,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.93 : 108,306.19 = 47,400.92 : x
  2. Step 2: Convert to fraction form
    72,203.93/108,306.19 = 47,400.92/x
  3. Step 3: Cross multiply
    72,203.93x = 108,306.19 × 47,400.92
  4. Step 4: Simplify right side
    72,203.93x = 5,133,812,506.16
  5. Step 5: Solve for x
    x = 5,133,812,506.16/72,203.93
  6. Step 6: Final answer
    x = 71,101.57

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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.