Home / 87,489.94-120,740.04-49,262.63

Finding the Fourth Proportional to 87,489.94, 120,740.04 and 49,262.63

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Solution

The fourth proportional to 87,489.94, 120,740.04 and 49,262.63 is: 67,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,489.94 : 120,740.04 = 49,262.63 : x
  2. Step 2: Convert to fraction form
    87,489.94/120,740.04 = 49,262.63/x
  3. Step 3: Cross multiply
    87,489.94x = 120,740.04 × 49,262.63
  4. Step 4: Simplify right side
    87,489.94x = 5,947,971,916.71
  5. Step 5: Solve for x
    x = 5,947,971,916.71/87,489.94
  6. Step 6: Final answer
    x = 67,984.64

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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.