Home / 86,444.28-129,444.12-69,497.64

Finding the Fourth Proportional to 86,444.28, 129,444.12 and 69,497.64

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Solution

The fourth proportional to 86,444.28, 129,444.12 and 69,497.64 is: 104,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,444.28 : 129,444.12 = 69,497.64 : x
  2. Step 2: Convert to fraction form
    86,444.28/129,444.12 = 69,497.64/x
  3. Step 3: Cross multiply
    86,444.28x = 129,444.12 × 69,497.64
  4. Step 4: Simplify right side
    86,444.28x = 8,996,060,851.88
  5. Step 5: Solve for x
    x = 8,996,060,851.88/86,444.28
  6. Step 6: Final answer
    x = 104,067.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.