Home / 72,455.10-108,688.05-25,701.90

Finding the Fourth Proportional to 72,455.10, 108,688.05 and 25,701.90

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Solution

The fourth proportional to 72,455.10, 108,688.05 and 25,701.90 is: 38,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,455.10 : 108,688.05 = 25,701.90 : x
  2. Step 2: Convert to fraction form
    72,455.10/108,688.05 = 25,701.90/x
  3. Step 3: Cross multiply
    72,455.10x = 108,688.05 × 25,701.90
  4. Step 4: Simplify right side
    72,455.10x = 2,793,489,392.30
  5. Step 5: Solve for x
    x = 2,793,489,392.30/72,455.10
  6. Step 6: Final answer
    x = 38,554.77

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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.