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Finding the Fourth Proportional to 60,880.40, 91,327.90 and 25,815.50

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Solution

The fourth proportional to 60,880.40, 91,327.90 and 25,815.50 is: 38,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,880.40 : 91,327.90 = 25,815.50 : x
  2. Step 2: Convert to fraction form
    60,880.40/91,327.90 = 25,815.50/x
  3. Step 3: Cross multiply
    60,880.40x = 91,327.90 × 25,815.50
  4. Step 4: Simplify right side
    60,880.40x = 2,357,675,402.45
  5. Step 5: Solve for x
    x = 2,357,675,402.45/60,880.40
  6. Step 6: Final answer
    x = 38,726.35

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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.