Home / 77,531.80-107,016.96-45,711.04

Finding the Fourth Proportional to 77,531.80, 107,016.96 and 45,711.04

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Solution

The fourth proportional to 77,531.80, 107,016.96 and 45,711.04 is: 63,094.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,531.80 : 107,016.96 = 45,711.04 : x
  2. Step 2: Convert to fraction form
    77,531.80/107,016.96 = 45,711.04/x
  3. Step 3: Cross multiply
    77,531.80x = 107,016.96 × 45,711.04
  4. Step 4: Simplify right side
    77,531.80x = 4,891,856,539.24
  5. Step 5: Solve for x
    x = 4,891,856,539.24/77,531.80
  6. Step 6: Final answer
    x = 63,094.84

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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.