Home / 56,113.97-84,142.80-18,660.85

Finding the Fourth Proportional to 56,113.97, 84,142.80 and 18,660.85

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Solution

The fourth proportional to 56,113.97, 84,142.80 and 18,660.85 is: 27,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,113.97 : 84,142.80 = 18,660.85 : x
  2. Step 2: Convert to fraction form
    56,113.97/84,142.80 = 18,660.85/x
  3. Step 3: Cross multiply
    56,113.97x = 84,142.80 × 18,660.85
  4. Step 4: Simplify right side
    56,113.97x = 1,570,175,959.02
  5. Step 5: Solve for x
    x = 1,570,175,959.02/56,113.97
  6. Step 6: Final answer
    x = 27,981.91

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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.