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Finding the Fourth Proportional to 69,995.27, 96,591.06 and 39,780.06

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Solution

The fourth proportional to 69,995.27, 96,591.06 and 39,780.06 is: 54,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,995.27 : 96,591.06 = 39,780.06 : x
  2. Step 2: Convert to fraction form
    69,995.27/96,591.06 = 39,780.06/x
  3. Step 3: Cross multiply
    69,995.27x = 96,591.06 × 39,780.06
  4. Step 4: Simplify right side
    69,995.27x = 3,842,398,162.26
  5. Step 5: Solve for x
    x = 3,842,398,162.26/69,995.27
  6. Step 6: Final answer
    x = 54,895.11

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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.