Home / 82,946.28-124,419.39-20,616.78

Finding the Fourth Proportional to 82,946.28, 124,419.39 and 20,616.78

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Solution

The fourth proportional to 82,946.28, 124,419.39 and 20,616.78 is: 30,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,946.28 : 124,419.39 = 20,616.78 : x
  2. Step 2: Convert to fraction form
    82,946.28/124,419.39 = 20,616.78/x
  3. Step 3: Cross multiply
    82,946.28x = 124,419.39 × 20,616.78
  4. Step 4: Simplify right side
    82,946.28x = 2,565,127,191.36
  5. Step 5: Solve for x
    x = 2,565,127,191.36/82,946.28
  6. Step 6: Final answer
    x = 30,925.16

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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.