Home / 56,634.70-78,154.22-31,141.04

Finding the Fourth Proportional to 56,634.70, 78,154.22 and 31,141.04

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Solution

The fourth proportional to 56,634.70, 78,154.22 and 31,141.04 is: 42,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,634.70 : 78,154.22 = 31,141.04 : x
  2. Step 2: Convert to fraction form
    56,634.70/78,154.22 = 31,141.04/x
  3. Step 3: Cross multiply
    56,634.70x = 78,154.22 × 31,141.04
  4. Step 4: Simplify right side
    56,634.70x = 2,433,803,691.19
  5. Step 5: Solve for x
    x = 2,433,803,691.19/56,634.70
  6. Step 6: Final answer
    x = 42,973.72

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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.