Home / 87,710.04-121,036.60-49,977

Finding the Fourth Proportional to 87,710.04, 121,036.60 and 49,977

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Solution

The fourth proportional to 87,710.04, 121,036.60 and 49,977 is: 68,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710.04 : 121,036.60 = 49,977 : x
  2. Step 2: Convert to fraction form
    87,710.04/121,036.60 = 49,977/x
  3. Step 3: Cross multiply
    87,710.04x = 121,036.60 × 49,977
  4. Step 4: Simplify right side
    87,710.04x = 6,049,046,158.20
  5. Step 5: Solve for x
    x = 6,049,046,158.20/87,710.04
  6. Step 6: Final answer
    x = 68,966.41

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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.