Home / 87,862.36-121,258.74-50,142.28

Finding the Fourth Proportional to 87,862.36, 121,258.74 and 50,142.28

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Solution

The fourth proportional to 87,862.36, 121,258.74 and 50,142.28 is: 69,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.36 : 121,258.74 = 50,142.28 : x
  2. Step 2: Convert to fraction form
    87,862.36/121,258.74 = 50,142.28/x
  3. Step 3: Cross multiply
    87,862.36x = 121,258.74 × 50,142.28
  4. Step 4: Simplify right side
    87,862.36x = 6,080,189,693.53
  5. Step 5: Solve for x
    x = 6,080,189,693.53/87,862.36
  6. Step 6: Final answer
    x = 69,201.30

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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.