Home / 80,873.18-121,347.35-30,936.77

Finding the Fourth Proportional to 80,873.18, 121,347.35 and 30,936.77

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Solution

The fourth proportional to 80,873.18, 121,347.35 and 30,936.77 is: 46,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873.18 : 121,347.35 = 30,936.77 : x
  2. Step 2: Convert to fraction form
    80,873.18/121,347.35 = 30,936.77/x
  3. Step 3: Cross multiply
    80,873.18x = 121,347.35 × 30,936.77
  4. Step 4: Simplify right side
    80,873.18x = 3,754,094,902.38
  5. Step 5: Solve for x
    x = 3,754,094,902.38/80,873.18
  6. Step 6: Final answer
    x = 46,419.53

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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.