Home / 84,730.55-127,067.96-28,555.52

Finding the Fourth Proportional to 84,730.55, 127,067.96 and 28,555.52

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Solution

The fourth proportional to 84,730.55, 127,067.96 and 28,555.52 is: 42,823.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,730.55 : 127,067.96 = 28,555.52 : x
  2. Step 2: Convert to fraction form
    84,730.55/127,067.96 = 28,555.52/x
  3. Step 3: Cross multiply
    84,730.55x = 127,067.96 × 28,555.52
  4. Step 4: Simplify right side
    84,730.55x = 3,628,490,895.02
  5. Step 5: Solve for x
    x = 3,628,490,895.02/84,730.55
  6. Step 6: Final answer
    x = 42,823.88

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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.