Home / 87,870.04-131,667.05-67,928.45

Finding the Fourth Proportional to 87,870.04, 131,667.05 and 67,928.45

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Solution

The fourth proportional to 87,870.04, 131,667.05 and 67,928.45 is: 101,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.04 : 131,667.05 = 67,928.45 : x
  2. Step 2: Convert to fraction form
    87,870.04/131,667.05 = 67,928.45/x
  3. Step 3: Cross multiply
    87,870.04x = 131,667.05 × 67,928.45
  4. Step 4: Simplify right side
    87,870.04x = 8,943,938,134.06
  5. Step 5: Solve for x
    x = 8,943,938,134.06/87,870.04
  6. Step 6: Final answer
    x = 101,785.98

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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.