Home / 71,839.85-98,973.77-56,726.96

Finding the Fourth Proportional to 71,839.85, 98,973.77 and 56,726.96

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Solution

The fourth proportional to 71,839.85, 98,973.77 and 56,726.96 is: 78,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,839.85 : 98,973.77 = 56,726.96 : x
  2. Step 2: Convert to fraction form
    71,839.85/98,973.77 = 56,726.96/x
  3. Step 3: Cross multiply
    71,839.85x = 98,973.77 × 56,726.96
  4. Step 4: Simplify right side
    71,839.85x = 5,614,480,313.34
  5. Step 5: Solve for x
    x = 5,614,480,313.34/71,839.85
  6. Step 6: Final answer
    x = 78,152.73

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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.