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Finding the Fourth Proportional to 86,859.77, 130,351.95 and 36,974.90

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Solution

The fourth proportional to 86,859.77, 130,351.95 and 36,974.90 is: 55,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.77 : 130,351.95 = 36,974.90 : x
  2. Step 2: Convert to fraction form
    86,859.77/130,351.95 = 36,974.90/x
  3. Step 3: Cross multiply
    86,859.77x = 130,351.95 × 36,974.90
  4. Step 4: Simplify right side
    86,859.77x = 4,819,750,641.93
  5. Step 5: Solve for x
    x = 4,819,750,641.93/86,859.77
  6. Step 6: Final answer
    x = 55,488.87

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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.