Home / 55,161.30-82,701.45-21,864.90

Finding the Fourth Proportional to 55,161.30, 82,701.45 and 21,864.90

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Solution

The fourth proportional to 55,161.30, 82,701.45 and 21,864.90 is: 32,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161.30 : 82,701.45 = 21,864.90 : x
  2. Step 2: Convert to fraction form
    55,161.30/82,701.45 = 21,864.90/x
  3. Step 3: Cross multiply
    55,161.30x = 82,701.45 × 21,864.90
  4. Step 4: Simplify right side
    55,161.30x = 1,808,258,934.11
  5. Step 5: Solve for x
    x = 1,808,258,934.11/55,161.30
  6. Step 6: Final answer
    x = 32,781.30

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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.