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Finding the Fourth Proportional to 60,379.80, 90,513.76 and 22,928.64

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Solution

The fourth proportional to 60,379.80, 90,513.76 and 22,928.64 is: 34,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,379.80 : 90,513.76 = 22,928.64 : x
  2. Step 2: Convert to fraction form
    60,379.80/90,513.76 = 22,928.64/x
  3. Step 3: Cross multiply
    60,379.80x = 90,513.76 × 22,928.64
  4. Step 4: Simplify right side
    60,379.80x = 2,075,357,418.09
  5. Step 5: Solve for x
    x = 2,075,357,418.09/60,379.80
  6. Step 6: Final answer
    x = 34,371.72

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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.