Home / 77,416.77-116,125.34-21,257.65

Finding the Fourth Proportional to 77,416.77, 116,125.34 and 21,257.65

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Solution

The fourth proportional to 77,416.77, 116,125.34 and 21,257.65 is: 31,886.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.77 : 116,125.34 = 21,257.65 : x
  2. Step 2: Convert to fraction form
    77,416.77/116,125.34 = 21,257.65/x
  3. Step 3: Cross multiply
    77,416.77x = 116,125.34 × 21,257.65
  4. Step 4: Simplify right side
    77,416.77x = 2,468,551,833.85
  5. Step 5: Solve for x
    x = 2,468,551,833.85/77,416.77
  6. Step 6: Final answer
    x = 31,886.53

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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.