Home / 87,934.89-121,392-58,913.25

Finding the Fourth Proportional to 87,934.89, 121,392 and 58,913.25

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Solution

The fourth proportional to 87,934.89, 121,392 and 58,913.25 is: 81,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.89 : 121,392 = 58,913.25 : x
  2. Step 2: Convert to fraction form
    87,934.89/121,392 = 58,913.25/x
  3. Step 3: Cross multiply
    87,934.89x = 121,392 × 58,913.25
  4. Step 4: Simplify right side
    87,934.89x = 7,151,597,244
  5. Step 5: Solve for x
    x = 7,151,597,244/87,934.89
  6. Step 6: Final answer
    x = 81,328.32

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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.