Home / 87,817.57-121,188.56-47,531.81

Finding the Fourth Proportional to 87,817.57, 121,188.56 and 47,531.81

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Solution

The fourth proportional to 87,817.57, 121,188.56 and 47,531.81 is: 65,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.57 : 121,188.56 = 47,531.81 : x
  2. Step 2: Convert to fraction form
    87,817.57/121,188.56 = 47,531.81/x
  3. Step 3: Cross multiply
    87,817.57x = 121,188.56 × 47,531.81
  4. Step 4: Simplify right side
    87,817.57x = 5,760,311,673.41
  5. Step 5: Solve for x
    x = 5,760,311,673.41/87,817.57
  6. Step 6: Final answer
    x = 65,594.07

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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.