Home / 80,422.02-120,614.67-30,507.66

Finding the Fourth Proportional to 80,422.02, 120,614.67 and 30,507.66

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Solution

The fourth proportional to 80,422.02, 120,614.67 and 30,507.66 is: 45,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,422.02 : 120,614.67 = 30,507.66 : x
  2. Step 2: Convert to fraction form
    80,422.02/120,614.67 = 30,507.66/x
  3. Step 3: Cross multiply
    80,422.02x = 120,614.67 × 30,507.66
  4. Step 4: Simplify right side
    80,422.02x = 3,679,671,343.37
  5. Step 5: Solve for x
    x = 3,679,671,343.37/80,422.02
  6. Step 6: Final answer
    x = 45,754.53

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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.