Home / 56,634.72-78,154.34-31,141.13

Finding the Fourth Proportional to 56,634.72, 78,154.34 and 31,141.13

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Solution

The fourth proportional to 56,634.72, 78,154.34 and 31,141.13 is: 42,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,634.72 : 78,154.34 = 31,141.13 : x
  2. Step 2: Convert to fraction form
    56,634.72/78,154.34 = 31,141.13/x
  3. Step 3: Cross multiply
    56,634.72x = 78,154.34 × 31,141.13
  4. Step 4: Simplify right side
    56,634.72x = 2,433,814,837.71
  5. Step 5: Solve for x
    x = 2,433,814,837.71/56,634.72
  6. Step 6: Final answer
    x = 42,973.90

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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.