Home / 84,511.08-126,722.88-31,196.88

Finding the Fourth Proportional to 84,511.08, 126,722.88 and 31,196.88

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Solution

The fourth proportional to 84,511.08, 126,722.88 and 31,196.88 is: 46,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,511.08 : 126,722.88 = 31,196.88 : x
  2. Step 2: Convert to fraction form
    84,511.08/126,722.88 = 31,196.88/x
  3. Step 3: Cross multiply
    84,511.08x = 126,722.88 × 31,196.88
  4. Step 4: Simplify right side
    84,511.08x = 3,953,358,480.61
  5. Step 5: Solve for x
    x = 3,953,358,480.61/84,511.08
  6. Step 6: Final answer
    x = 46,779.17

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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.