Home / 67,225.60-100,838.40-45,107.20

Finding the Fourth Proportional to 67,225.60, 100,838.40 and 45,107.20

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Solution

The fourth proportional to 67,225.60, 100,838.40 and 45,107.20 is: 67,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,225.60 : 100,838.40 = 45,107.20 : x
  2. Step 2: Convert to fraction form
    67,225.60/100,838.40 = 45,107.20/x
  3. Step 3: Cross multiply
    67,225.60x = 100,838.40 × 45,107.20
  4. Step 4: Simplify right side
    67,225.60x = 4,548,537,876.48
  5. Step 5: Solve for x
    x = 4,548,537,876.48/67,225.60
  6. Step 6: Final answer
    x = 67,660.80

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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.