Home / 86,209.24-129,313.86-23,879.76

Finding the Fourth Proportional to 86,209.24, 129,313.86 and 23,879.76

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Solution

The fourth proportional to 86,209.24, 129,313.86 and 23,879.76 is: 35,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,209.24 : 129,313.86 = 23,879.76 : x
  2. Step 2: Convert to fraction form
    86,209.24/129,313.86 = 23,879.76/x
  3. Step 3: Cross multiply
    86,209.24x = 129,313.86 × 23,879.76
  4. Step 4: Simplify right side
    86,209.24x = 3,087,983,941.47
  5. Step 5: Solve for x
    x = 3,087,983,941.47/86,209.24
  6. Step 6: Final answer
    x = 35,819.64

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1.5x scale

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.