Home / 87,923.28-121,334.38-47,636.84

Finding the Fourth Proportional to 87,923.28, 121,334.38 and 47,636.84

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Solution

The fourth proportional to 87,923.28, 121,334.38 and 47,636.84 is: 65,738.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.28 : 121,334.38 = 47,636.84 : x
  2. Step 2: Convert to fraction form
    87,923.28/121,334.38 = 47,636.84/x
  3. Step 3: Cross multiply
    87,923.28x = 121,334.38 × 47,636.84
  4. Step 4: Simplify right side
    87,923.28x = 5,779,986,446.56
  5. Step 5: Solve for x
    x = 5,779,986,446.56/87,923.28
  6. Step 6: Final answer
    x = 65,738.98

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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.