Home / 74,002.59-111,022.11-21,417.39

Finding the Fourth Proportional to 74,002.59, 111,022.11 and 21,417.39

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Solution

The fourth proportional to 74,002.59, 111,022.11 and 21,417.39 is: 32,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,002.59 : 111,022.11 = 21,417.39 : x
  2. Step 2: Convert to fraction form
    74,002.59/111,022.11 = 21,417.39/x
  3. Step 3: Cross multiply
    74,002.59x = 111,022.11 × 21,417.39
  4. Step 4: Simplify right side
    74,002.59x = 2,377,803,828.49
  5. Step 5: Solve for x
    x = 2,377,803,828.49/74,002.59
  6. Step 6: Final answer
    x = 32,131.36

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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.