Home / 77,416.76-116,125.32-21,257.64

Finding the Fourth Proportional to 77,416.76, 116,125.32 and 21,257.64

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Solution

The fourth proportional to 77,416.76, 116,125.32 and 21,257.64 is: 31,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.76 : 116,125.32 = 21,257.64 : x
  2. Step 2: Convert to fraction form
    77,416.76/116,125.32 = 21,257.64/x
  3. Step 3: Cross multiply
    77,416.76x = 116,125.32 × 21,257.64
  4. Step 4: Simplify right side
    77,416.76x = 2,468,550,247.44
  5. Step 5: Solve for x
    x = 2,468,550,247.44/77,416.76
  6. Step 6: Final answer
    x = 31,886.51

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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.