Home / 81,017.24-121,496.70-34,273.40

Finding the Fourth Proportional to 81,017.24, 121,496.70 and 34,273.40

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Solution

The fourth proportional to 81,017.24, 121,496.70 and 34,273.40 is: 51,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.24 : 121,496.70 = 34,273.40 : x
  2. Step 2: Convert to fraction form
    81,017.24/121,496.70 = 34,273.40/x
  3. Step 3: Cross multiply
    81,017.24x = 121,496.70 × 34,273.40
  4. Step 4: Simplify right side
    81,017.24x = 4,164,104,997.78
  5. Step 5: Solve for x
    x = 4,164,104,997.78/81,017.24
  6. Step 6: Final answer
    x = 51,397.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.