Home / 56,909.42-78,542.43-31,764.14

Finding the Fourth Proportional to 56,909.42, 78,542.43 and 31,764.14

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Solution

The fourth proportional to 56,909.42, 78,542.43 and 31,764.14 is: 43,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.42 : 78,542.43 = 31,764.14 : x
  2. Step 2: Convert to fraction form
    56,909.42/78,542.43 = 31,764.14/x
  3. Step 3: Cross multiply
    56,909.42x = 78,542.43 × 31,764.14
  4. Step 4: Simplify right side
    56,909.42x = 2,494,832,742.46
  5. Step 5: Solve for x
    x = 2,494,832,742.46/56,909.42
  6. Step 6: Final answer
    x = 43,838.66

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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.