Home / 77,680.98-107,217.45-54,996.39

Finding the Fourth Proportional to 77,680.98, 107,217.45 and 54,996.39

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Solution

The fourth proportional to 77,680.98, 107,217.45 and 54,996.39 is: 75,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,680.98 : 107,217.45 = 54,996.39 : x
  2. Step 2: Convert to fraction form
    77,680.98/107,217.45 = 54,996.39/x
  3. Step 3: Cross multiply
    77,680.98x = 107,217.45 × 54,996.39
  4. Step 4: Simplify right side
    77,680.98x = 5,896,572,695.01
  5. Step 5: Solve for x
    x = 5,896,572,695.01/77,680.98
  6. Step 6: Final answer
    x = 75,907.55

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1.5x scale

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.