Home / 70,128.98-96,778.76-38,298.81

Finding the Fourth Proportional to 70,128.98, 96,778.76 and 38,298.81

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Solution

The fourth proportional to 70,128.98, 96,778.76 and 38,298.81 is: 52,852.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,128.98 : 96,778.76 = 38,298.81 : x
  2. Step 2: Convert to fraction form
    70,128.98/96,778.76 = 38,298.81/x
  3. Step 3: Cross multiply
    70,128.98x = 96,778.76 × 38,298.81
  4. Step 4: Simplify right side
    70,128.98x = 3,706,511,149.78
  5. Step 5: Solve for x
    x = 3,706,511,149.78/70,128.98
  6. Step 6: Final answer
    x = 52,852.78

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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.