Home / 74,355.22-111,518.65-21,046.76

Finding the Fourth Proportional to 74,355.22, 111,518.65 and 21,046.76

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Solution

The fourth proportional to 74,355.22, 111,518.65 and 21,046.76 is: 31,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,355.22 : 111,518.65 = 21,046.76 : x
  2. Step 2: Convert to fraction form
    74,355.22/111,518.65 = 21,046.76/x
  3. Step 3: Cross multiply
    74,355.22x = 111,518.65 × 21,046.76
  4. Step 4: Simplify right side
    74,355.22x = 2,347,106,262.07
  5. Step 5: Solve for x
    x = 2,347,106,262.07/74,355.22
  6. Step 6: Final answer
    x = 31,566.13

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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.