Home / 71,831.40-107,753.36-21,922.76

Finding the Fourth Proportional to 71,831.40, 107,753.36 and 21,922.76

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Solution

The fourth proportional to 71,831.40, 107,753.36 and 21,922.76 is: 32,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,831.40 : 107,753.36 = 21,922.76 : x
  2. Step 2: Convert to fraction form
    71,831.40/107,753.36 = 21,922.76/x
  3. Step 3: Cross multiply
    71,831.40x = 107,753.36 × 21,922.76
  4. Step 4: Simplify right side
    71,831.40x = 2,362,251,050.47
  5. Step 5: Solve for x
    x = 2,362,251,050.47/71,831.40
  6. Step 6: Final answer
    x = 32,886.05

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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.