Home / 86,932.88-119,959.08-69,071.12

Finding the Fourth Proportional to 86,932.88, 119,959.08 and 69,071.12

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Solution

The fourth proportional to 86,932.88, 119,959.08 and 69,071.12 is: 95,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932.88 : 119,959.08 = 69,071.12 : x
  2. Step 2: Convert to fraction form
    86,932.88/119,959.08 = 69,071.12/x
  3. Step 3: Cross multiply
    86,932.88x = 119,959.08 × 69,071.12
  4. Step 4: Simplify right side
    86,932.88x = 8,285,708,009.77
  5. Step 5: Solve for x
    x = 8,285,708,009.77/86,932.88
  6. Step 6: Final answer
    x = 95,311.56

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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.