Home / 99,680.24-137,556.23-54,359.10

Finding the Fourth Proportional to 99,680.24, 137,556.23 and 54,359.10

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Solution

The fourth proportional to 99,680.24, 137,556.23 and 54,359.10 is: 75,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680.24 : 137,556.23 = 54,359.10 : x
  2. Step 2: Convert to fraction form
    99,680.24/137,556.23 = 54,359.10/x
  3. Step 3: Cross multiply
    99,680.24x = 137,556.23 × 54,359.10
  4. Step 4: Simplify right side
    99,680.24x = 7,477,432,174.41
  5. Step 5: Solve for x
    x = 7,477,432,174.41/99,680.24
  6. Step 6: Final answer
    x = 75,014.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.