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Finding the Fourth Proportional to 48,125.49, 72,139.76 and 20,061.08

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Solution

The fourth proportional to 48,125.49, 72,139.76 and 20,061.08 is: 30,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,125.49 : 72,139.76 = 20,061.08 : x
  2. Step 2: Convert to fraction form
    48,125.49/72,139.76 = 20,061.08/x
  3. Step 3: Cross multiply
    48,125.49x = 72,139.76 × 20,061.08
  4. Step 4: Simplify right side
    48,125.49x = 1,447,201,035.54
  5. Step 5: Solve for x
    x = 1,447,201,035.54/48,125.49
  6. Step 6: Final answer
    x = 30,071.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.