Home / 84,081.24-115,966.47-53,869.38

Finding the Fourth Proportional to 84,081.24, 115,966.47 and 53,869.38

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Solution

The fourth proportional to 84,081.24, 115,966.47 and 53,869.38 is: 74,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,081.24 : 115,966.47 = 53,869.38 : x
  2. Step 2: Convert to fraction form
    84,081.24/115,966.47 = 53,869.38/x
  3. Step 3: Cross multiply
    84,081.24x = 115,966.47 × 53,869.38
  4. Step 4: Simplify right side
    84,081.24x = 6,247,041,839.69
  5. Step 5: Solve for x
    x = 6,247,041,839.69/84,081.24
  6. Step 6: Final answer
    x = 74,297.69

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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.