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Finding the Fourth Proportional to 60,020.82, 90,087.74 and 30,459.87

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Solution

The fourth proportional to 60,020.82, 90,087.74 and 30,459.87 is: 45,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,020.82 : 90,087.74 = 30,459.87 : x
  2. Step 2: Convert to fraction form
    60,020.82/90,087.74 = 30,459.87/x
  3. Step 3: Cross multiply
    60,020.82x = 90,087.74 × 30,459.87
  4. Step 4: Simplify right side
    60,020.82x = 2,744,060,848.99
  5. Step 5: Solve for x
    x = 2,744,060,848.99/60,020.82
  6. Step 6: Final answer
    x = 45,718.48

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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.