Home / 86,787.40-119,751.78-49,060.84

Finding the Fourth Proportional to 86,787.40, 119,751.78 and 49,060.84

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Solution

The fourth proportional to 86,787.40, 119,751.78 and 49,060.84 is: 67,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,787.40 : 119,751.78 = 49,060.84 : x
  2. Step 2: Convert to fraction form
    86,787.40/119,751.78 = 49,060.84/x
  3. Step 3: Cross multiply
    86,787.40x = 119,751.78 × 49,060.84
  4. Step 4: Simplify right side
    86,787.40x = 5,875,122,918.30
  5. Step 5: Solve for x
    x = 5,875,122,918.30/86,787.40
  6. Step 6: Final answer
    x = 67,695.57

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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.