Home / 70,921.90-97,844.78-40,696.30

Finding the Fourth Proportional to 70,921.90, 97,844.78 and 40,696.30

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Solution

The fourth proportional to 70,921.90, 97,844.78 and 40,696.30 is: 56,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,921.90 : 97,844.78 = 40,696.30 : x
  2. Step 2: Convert to fraction form
    70,921.90/97,844.78 = 40,696.30/x
  3. Step 3: Cross multiply
    70,921.90x = 97,844.78 × 40,696.30
  4. Step 4: Simplify right side
    70,921.90x = 3,981,920,520.31
  5. Step 5: Solve for x
    x = 3,981,920,520.31/70,921.90
  6. Step 6: Final answer
    x = 56,145.15

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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.