Home / 67,125.60-100,688.40-45,007.20

Finding the Fourth Proportional to 67,125.60, 100,688.40 and 45,007.20

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Solution

The fourth proportional to 67,125.60, 100,688.40 and 45,007.20 is: 67,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,125.60 : 100,688.40 = 45,007.20 : x
  2. Step 2: Convert to fraction form
    67,125.60/100,688.40 = 45,007.20/x
  3. Step 3: Cross multiply
    67,125.60x = 100,688.40 × 45,007.20
  4. Step 4: Simplify right side
    67,125.60x = 4,531,702,956.48
  5. Step 5: Solve for x
    x = 4,531,702,956.48/67,125.60
  6. Step 6: Final answer
    x = 67,510.80

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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.