Home / 57,359.31-79,158.48-31,865.70

Finding the Fourth Proportional to 57,359.31, 79,158.48 and 31,865.70

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Solution

The fourth proportional to 57,359.31, 79,158.48 and 31,865.70 is: 43,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,359.31 : 79,158.48 = 31,865.70 : x
  2. Step 2: Convert to fraction form
    57,359.31/79,158.48 = 31,865.70/x
  3. Step 3: Cross multiply
    57,359.31x = 79,158.48 × 31,865.70
  4. Step 4: Simplify right side
    57,359.31x = 2,522,440,376.14
  5. Step 5: Solve for x
    x = 2,522,440,376.14/57,359.31
  6. Step 6: Final answer
    x = 43,976.13

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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.