Home / 84,621.52-126,943.08-28,437.52

Finding the Fourth Proportional to 84,621.52, 126,943.08 and 28,437.52

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Solution

The fourth proportional to 84,621.52, 126,943.08 and 28,437.52 is: 42,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.52 : 126,943.08 = 28,437.52 : x
  2. Step 2: Convert to fraction form
    84,621.52/126,943.08 = 28,437.52/x
  3. Step 3: Cross multiply
    84,621.52x = 126,943.08 × 28,437.52
  4. Step 4: Simplify right side
    84,621.52x = 3,609,946,376.36
  5. Step 5: Solve for x
    x = 3,609,946,376.36/84,621.52
  6. Step 6: Final answer
    x = 42,659.91

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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.