Home / 48,020.20-71,987.10-31,388.20

Finding the Fourth Proportional to 48,020.20, 71,987.10 and 31,388.20

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Solution

The fourth proportional to 48,020.20, 71,987.10 and 31,388.20 is: 47,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,020.20 : 71,987.10 = 31,388.20 : x
  2. Step 2: Convert to fraction form
    48,020.20/71,987.10 = 31,388.20/x
  3. Step 3: Cross multiply
    48,020.20x = 71,987.10 × 31,388.20
  4. Step 4: Simplify right side
    48,020.20x = 2,259,545,492.22
  5. Step 5: Solve for x
    x = 2,259,545,492.22/48,020.20
  6. Step 6: Final answer
    x = 47,054.06

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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.