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Finding the Fourth Proportional to 101,079.40, 139,496.10 and 58,652.20

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Solution

The fourth proportional to 101,079.40, 139,496.10 and 58,652.20 is: 80,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,079.40 : 139,496.10 = 58,652.20 : x
  2. Step 2: Convert to fraction form
    101,079.40/139,496.10 = 58,652.20/x
  3. Step 3: Cross multiply
    101,079.40x = 139,496.10 × 58,652.20
  4. Step 4: Simplify right side
    101,079.40x = 8,181,753,156.42
  5. Step 5: Solve for x
    x = 8,181,753,156.42/101,079.40
  6. Step 6: Final answer
    x = 80,943.82

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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.