Home / 67,769.08-101,653.86-47,987.80

Finding the Fourth Proportional to 67,769.08, 101,653.86 and 47,987.80

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Solution

The fourth proportional to 67,769.08, 101,653.86 and 47,987.80 is: 71,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,769.08 : 101,653.86 = 47,987.80 : x
  2. Step 2: Convert to fraction form
    67,769.08/101,653.86 = 47,987.80/x
  3. Step 3: Cross multiply
    67,769.08x = 101,653.86 × 47,987.80
  4. Step 4: Simplify right side
    67,769.08x = 4,878,145,102.91
  5. Step 5: Solve for x
    x = 4,878,145,102.91/67,769.08
  6. Step 6: Final answer
    x = 71,981.87

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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.