Home / 86,880.65-130,331.71-30,709.17

Finding the Fourth Proportional to 86,880.65, 130,331.71 and 30,709.17

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Solution

The fourth proportional to 86,880.65, 130,331.71 and 30,709.17 is: 46,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,880.65 : 130,331.71 = 30,709.17 : x
  2. Step 2: Convert to fraction form
    86,880.65/130,331.71 = 30,709.17/x
  3. Step 3: Cross multiply
    86,880.65x = 130,331.71 × 30,709.17
  4. Step 4: Simplify right side
    86,880.65x = 4,002,378,870.99
  5. Step 5: Solve for x
    x = 4,002,378,870.99/86,880.65
  6. Step 6: Final answer
    x = 46,067.55

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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.