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Finding the Fourth Proportional to 60,403.92, 90,564.52 and 30,764.40

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Solution

The fourth proportional to 60,403.92, 90,564.52 and 30,764.40 is: 46,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,403.92 : 90,564.52 = 30,764.40 : x
  2. Step 2: Convert to fraction form
    60,403.92/90,564.52 = 30,764.40/x
  3. Step 3: Cross multiply
    60,403.92x = 90,564.52 × 30,764.40
  4. Step 4: Simplify right side
    60,403.92x = 2,786,163,119.09
  5. Step 5: Solve for x
    x = 2,786,163,119.09/60,403.92
  6. Step 6: Final answer
    x = 46,125.53

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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.