Home / 84,619.74-126,929.61-43,095.90

Finding the Fourth Proportional to 84,619.74, 126,929.61 and 43,095.90

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Solution

The fourth proportional to 84,619.74, 126,929.61 and 43,095.90 is: 64,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.74 : 126,929.61 = 43,095.90 : x
  2. Step 2: Convert to fraction form
    84,619.74/126,929.61 = 43,095.90/x
  3. Step 3: Cross multiply
    84,619.74x = 126,929.61 × 43,095.90
  4. Step 4: Simplify right side
    84,619.74x = 5,470,145,779.60
  5. Step 5: Solve for x
    x = 5,470,145,779.60/84,619.74
  6. Step 6: Final answer
    x = 64,643.85

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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.