Home / 74,140.34-111,226.91-21,545.42

Finding the Fourth Proportional to 74,140.34, 111,226.91 and 21,545.42

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Solution

The fourth proportional to 74,140.34, 111,226.91 and 21,545.42 is: 32,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.34 : 111,226.91 = 21,545.42 : x
  2. Step 2: Convert to fraction form
    74,140.34/111,226.91 = 21,545.42/x
  3. Step 3: Cross multiply
    74,140.34x = 111,226.91 × 21,545.42
  4. Step 4: Simplify right side
    74,140.34x = 2,396,429,827.39
  5. Step 5: Solve for x
    x = 2,396,429,827.39/74,140.34
  6. Step 6: Final answer
    x = 32,322.89

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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.