Home / 99,315.48-137,048.22-56,872.92

Finding the Fourth Proportional to 99,315.48, 137,048.22 and 56,872.92

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Solution

The fourth proportional to 99,315.48, 137,048.22 and 56,872.92 is: 78,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,315.48 : 137,048.22 = 56,872.92 : x
  2. Step 2: Convert to fraction form
    99,315.48/137,048.22 = 56,872.92/x
  3. Step 3: Cross multiply
    99,315.48x = 137,048.22 × 56,872.92
  4. Step 4: Simplify right side
    99,315.48x = 7,794,332,452.20
  5. Step 5: Solve for x
    x = 7,794,332,452.20/99,315.48
  6. Step 6: Final answer
    x = 78,480.54

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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.