Home / 57,345.54-86,042.70-27,785.40

Finding the Fourth Proportional to 57,345.54, 86,042.70 and 27,785.40

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Solution

The fourth proportional to 57,345.54, 86,042.70 and 27,785.40 is: 41,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.54 : 86,042.70 = 27,785.40 : x
  2. Step 2: Convert to fraction form
    57,345.54/86,042.70 = 27,785.40/x
  3. Step 3: Cross multiply
    57,345.54x = 86,042.70 × 27,785.40
  4. Step 4: Simplify right side
    57,345.54x = 2,390,730,836.58
  5. Step 5: Solve for x
    x = 2,390,730,836.58/57,345.54
  6. Step 6: Final answer
    x = 41,689.92

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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.