Home / 52,316.73-78,429.05-20,748.95

Finding the Fourth Proportional to 52,316.73, 78,429.05 and 20,748.95

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Solution

The fourth proportional to 52,316.73, 78,429.05 and 20,748.95 is: 31,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,316.73 : 78,429.05 = 20,748.95 : x
  2. Step 2: Convert to fraction form
    52,316.73/78,429.05 = 20,748.95/x
  3. Step 3: Cross multiply
    52,316.73x = 78,429.05 × 20,748.95
  4. Step 4: Simplify right side
    52,316.73x = 1,627,320,529.33
  5. Step 5: Solve for x
    x = 1,627,320,529.33/52,316.73
  6. Step 6: Final answer
    x = 31,105.17

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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.