Home / 78,614.15-117,892.67-34,230.20

Finding the Fourth Proportional to 78,614.15, 117,892.67 and 34,230.20

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Solution

The fourth proportional to 78,614.15, 117,892.67 and 34,230.20 is: 51,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,614.15 : 117,892.67 = 34,230.20 : x
  2. Step 2: Convert to fraction form
    78,614.15/117,892.67 = 34,230.20/x
  3. Step 3: Cross multiply
    78,614.15x = 117,892.67 × 34,230.20
  4. Step 4: Simplify right side
    78,614.15x = 4,035,488,912.02
  5. Step 5: Solve for x
    x = 4,035,488,912.02/78,614.15
  6. Step 6: Final answer
    x = 51,332.86

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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.