Home / 74,332.17-111,515.57-21,745.76

Finding the Fourth Proportional to 74,332.17, 111,515.57 and 21,745.76

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Solution

The fourth proportional to 74,332.17, 111,515.57 and 21,745.76 is: 32,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.17 : 111,515.57 = 21,745.76 : x
  2. Step 2: Convert to fraction form
    74,332.17/111,515.57 = 21,745.76/x
  3. Step 3: Cross multiply
    74,332.17x = 111,515.57 × 21,745.76
  4. Step 4: Simplify right side
    74,332.17x = 2,424,990,155.18
  5. Step 5: Solve for x
    x = 2,424,990,155.18/74,332.17
  6. Step 6: Final answer
    x = 32,623.70

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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.