Home / 74,785.65-112,115.56-34,784.31

Finding the Fourth Proportional to 74,785.65, 112,115.56 and 34,784.31

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Solution

The fourth proportional to 74,785.65, 112,115.56 and 34,784.31 is: 52,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.65 : 112,115.56 = 34,784.31 : x
  2. Step 2: Convert to fraction form
    74,785.65/112,115.56 = 34,784.31/x
  3. Step 3: Cross multiply
    74,785.65x = 112,115.56 × 34,784.31
  4. Step 4: Simplify right side
    74,785.65x = 3,899,862,220.94
  5. Step 5: Solve for x
    x = 3,899,862,220.94/74,785.65
  6. Step 6: Final answer
    x = 52,147.20

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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.