Home / 84,511.52-126,782.36-28,369.91

Finding the Fourth Proportional to 84,511.52, 126,782.36 and 28,369.91

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Solution

The fourth proportional to 84,511.52, 126,782.36 and 28,369.91 is: 42,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,511.52 : 126,782.36 = 28,369.91 : x
  2. Step 2: Convert to fraction form
    84,511.52/126,782.36 = 28,369.91/x
  3. Step 3: Cross multiply
    84,511.52x = 126,782.36 × 28,369.91
  4. Step 4: Simplify right side
    84,511.52x = 3,596,803,367.03
  5. Step 5: Solve for x
    x = 3,596,803,367.03/84,511.52
  6. Step 6: Final answer
    x = 42,559.92

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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.