Home / 48,223.60-66,519.12-31,870.78

Finding the Fourth Proportional to 48,223.60, 66,519.12 and 31,870.78

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Solution

The fourth proportional to 48,223.60, 66,519.12 and 31,870.78 is: 43,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,223.60 : 66,519.12 = 31,870.78 : x
  2. Step 2: Convert to fraction form
    48,223.60/66,519.12 = 31,870.78/x
  3. Step 3: Cross multiply
    48,223.60x = 66,519.12 × 31,870.78
  4. Step 4: Simplify right side
    48,223.60x = 2,120,016,239.31
  5. Step 5: Solve for x
    x = 2,120,016,239.31/48,223.60
  6. Step 6: Final answer
    x = 43,962.21

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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.