Home / 80,092.37-120,356.79-42,679.17

Finding the Fourth Proportional to 80,092.37, 120,356.79 and 42,679.17

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Solution

The fourth proportional to 80,092.37, 120,356.79 and 42,679.17 is: 64,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,092.37 : 120,356.79 = 42,679.17 : x
  2. Step 2: Convert to fraction form
    80,092.37/120,356.79 = 42,679.17/x
  3. Step 3: Cross multiply
    80,092.37x = 120,356.79 × 42,679.17
  4. Step 4: Simplify right side
    80,092.37x = 5,136,727,901.06
  5. Step 5: Solve for x
    x = 5,136,727,901.06/80,092.37
  6. Step 6: Final answer
    x = 64,135.05

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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.