Home / 87,867.42-121,258.71-48,123.42

Finding the Fourth Proportional to 87,867.42, 121,258.71 and 48,123.42

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Solution

The fourth proportional to 87,867.42, 121,258.71 and 48,123.42 is: 66,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.42 : 121,258.71 = 48,123.42 : x
  2. Step 2: Convert to fraction form
    87,867.42/121,258.71 = 48,123.42/x
  3. Step 3: Cross multiply
    87,867.42x = 121,258.71 × 48,123.42
  4. Step 4: Simplify right side
    87,867.42x = 5,835,383,829.99
  5. Step 5: Solve for x
    x = 5,835,383,829.99/87,867.42
  6. Step 6: Final answer
    x = 66,411.23

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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.