Home / 87,463.04-120,766.81-68,309.38

Finding the Fourth Proportional to 87,463.04, 120,766.81 and 68,309.38

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Solution

The fourth proportional to 87,463.04, 120,766.81 and 68,309.38 is: 94,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,463.04 : 120,766.81 = 68,309.38 : x
  2. Step 2: Convert to fraction form
    87,463.04/120,766.81 = 68,309.38/x
  3. Step 3: Cross multiply
    87,463.04x = 120,766.81 × 68,309.38
  4. Step 4: Simplify right side
    87,463.04x = 8,249,505,442.99
  5. Step 5: Solve for x
    x = 8,249,505,442.99/87,463.04
  6. Step 6: Final answer
    x = 94,319.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.