Home / 83,942.64-125,913.93-28,538.64

Finding the Fourth Proportional to 83,942.64, 125,913.93 and 28,538.64

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Solution

The fourth proportional to 83,942.64, 125,913.93 and 28,538.64 is: 42,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,942.64 : 125,913.93 = 28,538.64 : x
  2. Step 2: Convert to fraction form
    83,942.64/125,913.93 = 28,538.64/x
  3. Step 3: Cross multiply
    83,942.64x = 125,913.93 × 28,538.64
  4. Step 4: Simplify right side
    83,942.64x = 3,593,412,319.26
  5. Step 5: Solve for x
    x = 3,593,412,319.26/83,942.64
  6. Step 6: Final answer
    x = 42,807.95

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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.