Home / 86,889.32-119,920.14-55,061.18

Finding the Fourth Proportional to 86,889.32, 119,920.14 and 55,061.18

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Solution

The fourth proportional to 86,889.32, 119,920.14 and 55,061.18 is: 75,992.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,889.32 : 119,920.14 = 55,061.18 : x
  2. Step 2: Convert to fraction form
    86,889.32/119,920.14 = 55,061.18/x
  3. Step 3: Cross multiply
    86,889.32x = 119,920.14 × 55,061.18
  4. Step 4: Simplify right side
    86,889.32x = 6,602,944,414.17
  5. Step 5: Solve for x
    x = 6,602,944,414.17/86,889.32
  6. Step 6: Final answer
    x = 75,992.59

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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.