Home / 47,444.60-71,145.30-21,135.80

Finding the Fourth Proportional to 47,444.60, 71,145.30 and 21,135.80

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Solution

The fourth proportional to 47,444.60, 71,145.30 and 21,135.80 is: 31,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,444.60 : 71,145.30 = 21,135.80 : x
  2. Step 2: Convert to fraction form
    47,444.60/71,145.30 = 21,135.80/x
  3. Step 3: Cross multiply
    47,444.60x = 71,145.30 × 21,135.80
  4. Step 4: Simplify right side
    47,444.60x = 1,503,712,831.74
  5. Step 5: Solve for x
    x = 1,503,712,831.74/47,444.60
  6. Step 6: Final answer
    x = 31,694.08

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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.