Home / 56,920.47-78,544.65-31,425.22

Finding the Fourth Proportional to 56,920.47, 78,544.65 and 31,425.22

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Solution

The fourth proportional to 56,920.47, 78,544.65 and 31,425.22 is: 43,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.47 : 78,544.65 = 31,425.22 : x
  2. Step 2: Convert to fraction form
    56,920.47/78,544.65 = 31,425.22/x
  3. Step 3: Cross multiply
    56,920.47x = 78,544.65 × 31,425.22
  4. Step 4: Simplify right side
    56,920.47x = 2,468,282,906.07
  5. Step 5: Solve for x
    x = 2,468,282,906.07/56,920.47
  6. Step 6: Final answer
    x = 43,363.71

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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.