Home / 79,639.06-109,901.92-43,829.08

Finding the Fourth Proportional to 79,639.06, 109,901.92 and 43,829.08

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Solution

The fourth proportional to 79,639.06, 109,901.92 and 43,829.08 is: 60,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,639.06 : 109,901.92 = 43,829.08 : x
  2. Step 2: Convert to fraction form
    79,639.06/109,901.92 = 43,829.08/x
  3. Step 3: Cross multiply
    79,639.06x = 109,901.92 × 43,829.08
  4. Step 4: Simplify right side
    79,639.06x = 4,816,900,043.83
  5. Step 5: Solve for x
    x = 4,816,900,043.83/79,639.06
  6. Step 6: Final answer
    x = 60,484.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.