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Finding the Fourth Proportional to 78,227.84, 117,340.48 and 19,063.68

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Solution

The fourth proportional to 78,227.84, 117,340.48 and 19,063.68 is: 28,595.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,227.84 : 117,340.48 = 19,063.68 : x
  2. Step 2: Convert to fraction form
    78,227.84/117,340.48 = 19,063.68/x
  3. Step 3: Cross multiply
    78,227.84x = 117,340.48 × 19,063.68
  4. Step 4: Simplify right side
    78,227.84x = 2,236,941,361.77
  5. Step 5: Solve for x
    x = 2,236,941,361.77/78,227.84
  6. Step 6: Final answer
    x = 28,595.21

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1.5x scale

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.