Home / 74,786.65-112,117.05-34,785.31

Finding the Fourth Proportional to 74,786.65, 112,117.05 and 34,785.31

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Solution

The fourth proportional to 74,786.65, 112,117.05 and 34,785.31 is: 52,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,786.65 : 112,117.05 = 34,785.31 : x
  2. Step 2: Convert to fraction form
    74,786.65/112,117.05 = 34,785.31/x
  3. Step 3: Cross multiply
    74,786.65x = 112,117.05 × 34,785.31
  4. Step 4: Simplify right side
    74,786.65x = 3,900,026,340.54
  5. Step 5: Solve for x
    x = 3,900,026,340.54/74,786.65
  6. Step 6: Final answer
    x = 52,148.70

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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.