Home / 86,859.91-130,312.33-50,866.76

Finding the Fourth Proportional to 86,859.91, 130,312.33 and 50,866.76

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Solution

The fourth proportional to 86,859.91, 130,312.33 and 50,866.76 is: 76,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.91 : 130,312.33 = 50,866.76 : x
  2. Step 2: Convert to fraction form
    86,859.91/130,312.33 = 50,866.76/x
  3. Step 3: Cross multiply
    86,859.91x = 130,312.33 × 50,866.76
  4. Step 4: Simplify right side
    86,859.91x = 6,628,566,585.27
  5. Step 5: Solve for x
    x = 6,628,566,585.27/86,859.91
  6. Step 6: Final answer
    x = 76,313.30

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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.