Home / 56,451.76-77,903.04-31,301.20

Finding the Fourth Proportional to 56,451.76, 77,903.04 and 31,301.20

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Solution

The fourth proportional to 56,451.76, 77,903.04 and 31,301.20 is: 43,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,451.76 : 77,903.04 = 31,301.20 : x
  2. Step 2: Convert to fraction form
    56,451.76/77,903.04 = 31,301.20/x
  3. Step 3: Cross multiply
    56,451.76x = 77,903.04 × 31,301.20
  4. Step 4: Simplify right side
    56,451.76x = 2,438,458,635.65
  5. Step 5: Solve for x
    x = 2,438,458,635.65/56,451.76
  6. Step 6: Final answer
    x = 43,195.44

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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.