Home / 67,072.94-100,612.47-47,439.15

Finding the Fourth Proportional to 67,072.94, 100,612.47 and 47,439.15

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Solution

The fourth proportional to 67,072.94, 100,612.47 and 47,439.15 is: 71,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,072.94 : 100,612.47 = 47,439.15 : x
  2. Step 2: Convert to fraction form
    67,072.94/100,612.47 = 47,439.15/x
  3. Step 3: Cross multiply
    67,072.94x = 100,612.47 × 47,439.15
  4. Step 4: Simplify right side
    67,072.94x = 4,772,970,056.20
  5. Step 5: Solve for x
    x = 4,772,970,056.20/67,072.94
  6. Step 6: Final answer
    x = 71,160.89

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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.