Home / 55,314.70-76,332.68-31,440.86

Finding the Fourth Proportional to 55,314.70, 76,332.68 and 31,440.86

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Solution

The fourth proportional to 55,314.70, 76,332.68 and 31,440.86 is: 43,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,314.70 : 76,332.68 = 31,440.86 : x
  2. Step 2: Convert to fraction form
    55,314.70/76,332.68 = 31,440.86/x
  3. Step 3: Cross multiply
    55,314.70x = 76,332.68 × 31,440.86
  4. Step 4: Simplify right side
    55,314.70x = 2,399,964,970.59
  5. Step 5: Solve for x
    x = 2,399,964,970.59/55,314.70
  6. Step 6: Final answer
    x = 43,387.47

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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.