Home / 83,868.41-115,689.26-53,642.71

Finding the Fourth Proportional to 83,868.41, 115,689.26 and 53,642.71

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Solution

The fourth proportional to 83,868.41, 115,689.26 and 53,642.71 is: 73,995.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.41 : 115,689.26 = 53,642.71 : x
  2. Step 2: Convert to fraction form
    83,868.41/115,689.26 = 53,642.71/x
  3. Step 3: Cross multiply
    83,868.41x = 115,689.26 × 53,642.71
  4. Step 4: Simplify right side
    83,868.41x = 6,205,885,052.26
  5. Step 5: Solve for x
    x = 6,205,885,052.26/83,868.41
  6. Step 6: Final answer
    x = 73,995.50

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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.