Home / 71,215.20-106,822.80-44,643.15

Finding the Fourth Proportional to 71,215.20, 106,822.80 and 44,643.15

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Solution

The fourth proportional to 71,215.20, 106,822.80 and 44,643.15 is: 66,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.20 : 106,822.80 = 44,643.15 : x
  2. Step 2: Convert to fraction form
    71,215.20/106,822.80 = 44,643.15/x
  3. Step 3: Cross multiply
    71,215.20x = 106,822.80 × 44,643.15
  4. Step 4: Simplify right side
    71,215.20x = 4,768,906,283.82
  5. Step 5: Solve for x
    x = 4,768,906,283.82/71,215.20
  6. Step 6: Final answer
    x = 66,964.73

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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.