Home / 81,074.04-121,507.38-34,262.52

Finding the Fourth Proportional to 81,074.04, 121,507.38 and 34,262.52

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Solution

The fourth proportional to 81,074.04, 121,507.38 and 34,262.52 is: 51,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.04 : 121,507.38 = 34,262.52 : x
  2. Step 2: Convert to fraction form
    81,074.04/121,507.38 = 34,262.52/x
  3. Step 3: Cross multiply
    81,074.04x = 121,507.38 × 34,262.52
  4. Step 4: Simplify right side
    81,074.04x = 4,163,149,037.40
  5. Step 5: Solve for x
    x = 4,163,149,037.40/81,074.04
  6. Step 6: Final answer
    x = 51,349.96

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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.