Home / 81,692.35-112,717.01-49,426.16

Finding the Fourth Proportional to 81,692.35, 112,717.01 and 49,426.16

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Solution

The fourth proportional to 81,692.35, 112,717.01 and 49,426.16 is: 68,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,692.35 : 112,717.01 = 49,426.16 : x
  2. Step 2: Convert to fraction form
    81,692.35/112,717.01 = 49,426.16/x
  3. Step 3: Cross multiply
    81,692.35x = 112,717.01 × 49,426.16
  4. Step 4: Simplify right side
    81,692.35x = 5,571,168,975.98
  5. Step 5: Solve for x
    x = 5,571,168,975.98/81,692.35
  6. Step 6: Final answer
    x = 68,196.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.