Home / 55,342.43-76,372.56-31,470.57

Finding the Fourth Proportional to 55,342.43, 76,372.56 and 31,470.57

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Solution

The fourth proportional to 55,342.43, 76,372.56 and 31,470.57 is: 43,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,342.43 : 76,372.56 = 31,470.57 : x
  2. Step 2: Convert to fraction form
    55,342.43/76,372.56 = 31,470.57/x
  3. Step 3: Cross multiply
    55,342.43x = 76,372.56 × 31,470.57
  4. Step 4: Simplify right side
    55,342.43x = 2,403,487,613.70
  5. Step 5: Solve for x
    x = 2,403,487,613.70/55,342.43
  6. Step 6: Final answer
    x = 43,429.38

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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.