Home / 48,020.20-72,030.30-30,502.60

Finding the Fourth Proportional to 48,020.20, 72,030.30 and 30,502.60

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Solution

The fourth proportional to 48,020.20, 72,030.30 and 30,502.60 is: 45,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,020.20 : 72,030.30 = 30,502.60 : x
  2. Step 2: Convert to fraction form
    48,020.20/72,030.30 = 30,502.60/x
  3. Step 3: Cross multiply
    48,020.20x = 72,030.30 × 30,502.60
  4. Step 4: Simplify right side
    48,020.20x = 2,197,111,428.78
  5. Step 5: Solve for x
    x = 2,197,111,428.78/48,020.20
  6. Step 6: Final answer
    x = 45,753.90

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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.