Home / 83,057.40-124,586.10-66,622.20

Finding the Fourth Proportional to 83,057.40, 124,586.10 and 66,622.20

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Solution

The fourth proportional to 83,057.40, 124,586.10 and 66,622.20 is: 99,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,057.40 : 124,586.10 = 66,622.20 : x
  2. Step 2: Convert to fraction form
    83,057.40/124,586.10 = 66,622.20/x
  3. Step 3: Cross multiply
    83,057.40x = 124,586.10 × 66,622.20
  4. Step 4: Simplify right side
    83,057.40x = 8,300,200,071.42
  5. Step 5: Solve for x
    x = 8,300,200,071.42/83,057.40
  6. Step 6: Final answer
    x = 99,933.30

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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.