Home / 57,490.85-79,339.66-31,998.28

Finding the Fourth Proportional to 57,490.85, 79,339.66 and 31,998.28

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Solution

The fourth proportional to 57,490.85, 79,339.66 and 31,998.28 is: 44,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.85 : 79,339.66 = 31,998.28 : x
  2. Step 2: Convert to fraction form
    57,490.85/79,339.66 = 31,998.28/x
  3. Step 3: Cross multiply
    57,490.85x = 79,339.66 × 31,998.28
  4. Step 4: Simplify right side
    57,490.85x = 2,538,732,655.78
  5. Step 5: Solve for x
    x = 2,538,732,655.78/57,490.85
  6. Step 6: Final answer
    x = 44,158.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.