Home / 83,839.56-115,640.01-56,935.36

Finding the Fourth Proportional to 83,839.56, 115,640.01 and 56,935.36

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Solution

The fourth proportional to 83,839.56, 115,640.01 and 56,935.36 is: 78,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,839.56 : 115,640.01 = 56,935.36 : x
  2. Step 2: Convert to fraction form
    83,839.56/115,640.01 = 56,935.36/x
  3. Step 3: Cross multiply
    83,839.56x = 115,640.01 × 56,935.36
  4. Step 4: Simplify right side
    83,839.56x = 6,584,005,599.75
  5. Step 5: Solve for x
    x = 6,584,005,599.75/83,839.56
  6. Step 6: Final answer
    x = 78,531.01

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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.