Home / 79,747.35-119,621.12-74,875.79

Finding the Fourth Proportional to 79,747.35, 119,621.12 and 74,875.79

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Solution

The fourth proportional to 79,747.35, 119,621.12 and 74,875.79 is: 112,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.35 : 119,621.12 = 74,875.79 : x
  2. Step 2: Convert to fraction form
    79,747.35/119,621.12 = 74,875.79/x
  3. Step 3: Cross multiply
    79,747.35x = 119,621.12 × 74,875.79
  4. Step 4: Simplify right side
    79,747.35x = 8,956,724,888.20
  5. Step 5: Solve for x
    x = 8,956,724,888.20/79,747.35
  6. Step 6: Final answer
    x = 112,313.76

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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.