Home / 87,282.09-120,459.56-49,041.72

Finding the Fourth Proportional to 87,282.09, 120,459.56 and 49,041.72

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Solution

The fourth proportional to 87,282.09, 120,459.56 and 49,041.72 is: 67,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,282.09 : 120,459.56 = 49,041.72 : x
  2. Step 2: Convert to fraction form
    87,282.09/120,459.56 = 49,041.72/x
  3. Step 3: Cross multiply
    87,282.09x = 120,459.56 × 49,041.72
  4. Step 4: Simplify right side
    87,282.09x = 5,907,543,767.63
  5. Step 5: Solve for x
    x = 5,907,543,767.63/87,282.09
  6. Step 6: Final answer
    x = 67,683.34

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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.