Home / 72,280.14-108,223.38-56,213.90

Finding the Fourth Proportional to 72,280.14, 108,223.38 and 56,213.90

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Solution

The fourth proportional to 72,280.14, 108,223.38 and 56,213.90 is: 84,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,280.14 : 108,223.38 = 56,213.90 : x
  2. Step 2: Convert to fraction form
    72,280.14/108,223.38 = 56,213.90/x
  3. Step 3: Cross multiply
    72,280.14x = 108,223.38 × 56,213.90
  4. Step 4: Simplify right side
    72,280.14x = 6,083,658,260.98
  5. Step 5: Solve for x
    x = 6,083,658,260.98/72,280.14
  6. Step 6: Final answer
    x = 84,167.77

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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.