Home / 87,766.47-121,117.37-47,480.14

Finding the Fourth Proportional to 87,766.47, 121,117.37 and 47,480.14

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Solution

The fourth proportional to 87,766.47, 121,117.37 and 47,480.14 is: 65,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,766.47 : 121,117.37 = 47,480.14 : x
  2. Step 2: Convert to fraction form
    87,766.47/121,117.37 = 47,480.14/x
  3. Step 3: Cross multiply
    87,766.47x = 121,117.37 × 47,480.14
  4. Step 4: Simplify right side
    87,766.47x = 5,750,669,143.84
  5. Step 5: Solve for x
    x = 5,750,669,143.84/87,766.47
  6. Step 6: Final answer
    x = 65,522.39

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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.