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Finding the Fourth Proportional to 72,280.39, 108,358.23 and 34,788.89

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Solution

The fourth proportional to 72,280.39, 108,358.23 and 34,788.89 is: 52,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,280.39 : 108,358.23 = 34,788.89 : x
  2. Step 2: Convert to fraction form
    72,280.39/108,358.23 = 34,788.89/x
  3. Step 3: Cross multiply
    72,280.39x = 108,358.23 × 34,788.89
  4. Step 4: Simplify right side
    72,280.39x = 3,769,662,002.27
  5. Step 5: Solve for x
    x = 3,769,662,002.27/72,280.39
  6. Step 6: Final answer
    x = 52,153.32

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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.