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Finding the Fourth Proportional to 60,668.92, 91,017.87 and 19,115.92

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Solution

The fourth proportional to 60,668.92, 91,017.87 and 19,115.92 is: 28,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,668.92 : 91,017.87 = 19,115.92 : x
  2. Step 2: Convert to fraction form
    60,668.92/91,017.87 = 19,115.92/x
  3. Step 3: Cross multiply
    60,668.92x = 91,017.87 × 19,115.92
  4. Step 4: Simplify right side
    60,668.92x = 1,739,890,321.49
  5. Step 5: Solve for x
    x = 1,739,890,321.49/60,668.92
  6. Step 6: Final answer
    x = 28,678.45

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1.5x scale

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.