Home / 56,781.80-78,341.56-32,903.88

Finding the Fourth Proportional to 56,781.80, 78,341.56 and 32,903.88

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Solution

The fourth proportional to 56,781.80, 78,341.56 and 32,903.88 is: 45,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,781.80 : 78,341.56 = 32,903.88 : x
  2. Step 2: Convert to fraction form
    56,781.80/78,341.56 = 32,903.88/x
  3. Step 3: Cross multiply
    56,781.80x = 78,341.56 × 32,903.88
  4. Step 4: Simplify right side
    56,781.80x = 2,577,741,289.25
  5. Step 5: Solve for x
    x = 2,577,741,289.25/56,781.80
  6. Step 6: Final answer
    x = 45,397.32

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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.