Home / 56,732.68-78,290.45-31,238.51

Finding the Fourth Proportional to 56,732.68, 78,290.45 and 31,238.51

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Solution

The fourth proportional to 56,732.68, 78,290.45 and 31,238.51 is: 43,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,732.68 : 78,290.45 = 31,238.51 : x
  2. Step 2: Convert to fraction form
    56,732.68/78,290.45 = 31,238.51/x
  3. Step 3: Cross multiply
    56,732.68x = 78,290.45 × 31,238.51
  4. Step 4: Simplify right side
    56,732.68x = 2,445,677,279.05
  5. Step 5: Solve for x
    x = 2,445,677,279.05/56,732.68
  6. Step 6: Final answer
    x = 43,108.79

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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.