Home / 87,683.57-121,003.22-47,397.33

Finding the Fourth Proportional to 87,683.57, 121,003.22 and 47,397.33

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Solution

The fourth proportional to 87,683.57, 121,003.22 and 47,397.33 is: 65,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,683.57 : 121,003.22 = 47,397.33 : x
  2. Step 2: Convert to fraction form
    87,683.57/121,003.22 = 47,397.33/x
  3. Step 3: Cross multiply
    87,683.57x = 121,003.22 × 47,397.33
  4. Step 4: Simplify right side
    87,683.57x = 5,735,229,312.42
  5. Step 5: Solve for x
    x = 5,735,229,312.42/87,683.57
  6. Step 6: Final answer
    x = 65,408.26

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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.