Home / 80,440.32-110,748.80-69,087.36

Finding the Fourth Proportional to 80,440.32, 110,748.80 and 69,087.36

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Solution

The fourth proportional to 80,440.32, 110,748.80 and 69,087.36 is: 95,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,440.32 : 110,748.80 = 69,087.36 : x
  2. Step 2: Convert to fraction form
    80,440.32/110,748.80 = 69,087.36/x
  3. Step 3: Cross multiply
    80,440.32x = 110,748.80 × 69,087.36
  4. Step 4: Simplify right side
    80,440.32x = 7,651,342,215.17
  5. Step 5: Solve for x
    x = 7,651,342,215.17/80,440.32
  6. Step 6: Final answer
    x = 95,118.25

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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.