Home / 55,854.27-77,078.75-30,360.64

Finding the Fourth Proportional to 55,854.27, 77,078.75 and 30,360.64

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Solution

The fourth proportional to 55,854.27, 77,078.75 and 30,360.64 is: 41,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,854.27 : 77,078.75 = 30,360.64 : x
  2. Step 2: Convert to fraction form
    55,854.27/77,078.75 = 30,360.64/x
  3. Step 3: Cross multiply
    55,854.27x = 77,078.75 × 30,360.64
  4. Step 4: Simplify right side
    55,854.27x = 2,340,159,949.75
  5. Step 5: Solve for x
    x = 2,340,159,949.75/55,854.27
  6. Step 6: Final answer
    x = 41,897.60

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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.