Home / 75,127.84-112,748.89-27,787.72

Finding the Fourth Proportional to 75,127.84, 112,748.89 and 27,787.72

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Solution

The fourth proportional to 75,127.84, 112,748.89 and 27,787.72 is: 41,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.84 : 112,748.89 = 27,787.72 : x
  2. Step 2: Convert to fraction form
    75,127.84/112,748.89 = 27,787.72/x
  3. Step 3: Cross multiply
    75,127.84x = 112,748.89 × 27,787.72
  4. Step 4: Simplify right side
    75,127.84x = 3,133,034,585.63
  5. Step 5: Solve for x
    x = 3,133,034,585.63/75,127.84
  6. Step 6: Final answer
    x = 41,702.71

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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.