Home / 86,977.94-130,414.53-47,480.18

Finding the Fourth Proportional to 86,977.94, 130,414.53 and 47,480.18

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Solution

The fourth proportional to 86,977.94, 130,414.53 and 47,480.18 is: 71,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,977.94 : 130,414.53 = 47,480.18 : x
  2. Step 2: Convert to fraction form
    86,977.94/130,414.53 = 47,480.18/x
  3. Step 3: Cross multiply
    86,977.94x = 130,414.53 × 47,480.18
  4. Step 4: Simplify right side
    86,977.94x = 6,192,105,359.02
  5. Step 5: Solve for x
    x = 6,192,105,359.02/86,977.94
  6. Step 6: Final answer
    x = 71,191.68

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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.