Home / 87,883.84-121,279-47,596.68

Finding the Fourth Proportional to 87,883.84, 121,279 and 47,596.68

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Solution

The fourth proportional to 87,883.84, 121,279 and 47,596.68 is: 65,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.84 : 121,279 = 47,596.68 : x
  2. Step 2: Convert to fraction form
    87,883.84/121,279 = 47,596.68/x
  3. Step 3: Cross multiply
    87,883.84x = 121,279 × 47,596.68
  4. Step 4: Simplify right side
    87,883.84x = 5,772,477,753.72
  5. Step 5: Solve for x
    x = 5,772,477,753.72/87,883.84
  6. Step 6: Final answer
    x = 65,683.04

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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.