Home / 42,368.56-63,553.20-10,778.65

Finding the Fourth Proportional to 42,368.56, 63,553.20 and 10,778.65

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Solution

The fourth proportional to 42,368.56, 63,553.20 and 10,778.65 is: 16,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.56 : 63,553.20 = 10,778.65 : x
  2. Step 2: Convert to fraction form
    42,368.56/63,553.20 = 10,778.65/x
  3. Step 3: Cross multiply
    42,368.56x = 63,553.20 × 10,778.65
  4. Step 4: Simplify right side
    42,368.56x = 685,017,540.30
  5. Step 5: Solve for x
    x = 685,017,540.30/42,368.56
  6. Step 6: Final answer
    x = 16,168.06

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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.