Home / 85,366.29-127,739.57-61,721.18

Finding the Fourth Proportional to 85,366.29, 127,739.57 and 61,721.18

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Solution

The fourth proportional to 85,366.29, 127,739.57 and 61,721.18 is: 92,357.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.29 : 127,739.57 = 61,721.18 : x
  2. Step 2: Convert to fraction form
    85,366.29/127,739.57 = 61,721.18/x
  3. Step 3: Cross multiply
    85,366.29x = 127,739.57 × 61,721.18
  4. Step 4: Simplify right side
    85,366.29x = 7,884,236,045.79
  5. Step 5: Solve for x
    x = 7,884,236,045.79/85,366.29
  6. Step 6: Final answer
    x = 92,357.72

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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.