Home / 48,021.60-71,989.20-30,482.40

Finding the Fourth Proportional to 48,021.60, 71,989.20 and 30,482.40

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Solution

The fourth proportional to 48,021.60, 71,989.20 and 30,482.40 is: 45,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,021.60 : 71,989.20 = 30,482.40 : x
  2. Step 2: Convert to fraction form
    48,021.60/71,989.20 = 30,482.40/x
  3. Step 3: Cross multiply
    48,021.60x = 71,989.20 × 30,482.40
  4. Step 4: Simplify right side
    48,021.60x = 2,194,403,590.08
  5. Step 5: Solve for x
    x = 2,194,403,590.08/48,021.60
  6. Step 6: Final answer
    x = 45,696.18

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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.