Home / 96,941.40-145,412.10-54,778.20

Finding the Fourth Proportional to 96,941.40, 145,412.10 and 54,778.20

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Solution

The fourth proportional to 96,941.40, 145,412.10 and 54,778.20 is: 82,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,941.40 : 145,412.10 = 54,778.20 : x
  2. Step 2: Convert to fraction form
    96,941.40/145,412.10 = 54,778.20/x
  3. Step 3: Cross multiply
    96,941.40x = 145,412.10 × 54,778.20
  4. Step 4: Simplify right side
    96,941.40x = 7,965,413,096.22
  5. Step 5: Solve for x
    x = 7,965,413,096.22/96,941.40
  6. Step 6: Final answer
    x = 82,167.30

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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.