Home / 55,139.10-82,708.65-28,851.90

Finding the Fourth Proportional to 55,139.10, 82,708.65 and 28,851.90

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Solution

The fourth proportional to 55,139.10, 82,708.65 and 28,851.90 is: 43,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,139.10 : 82,708.65 = 28,851.90 : x
  2. Step 2: Convert to fraction form
    55,139.10/82,708.65 = 28,851.90/x
  3. Step 3: Cross multiply
    55,139.10x = 82,708.65 × 28,851.90
  4. Step 4: Simplify right side
    55,139.10x = 2,386,301,698.94
  5. Step 5: Solve for x
    x = 2,386,301,698.94/55,139.10
  6. Step 6: Final answer
    x = 43,277.85

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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.