Home / 77,416.92-116,066.88-39,960.72

Finding the Fourth Proportional to 77,416.92, 116,066.88 and 39,960.72

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Solution

The fourth proportional to 77,416.92, 116,066.88 and 39,960.72 is: 59,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.92 : 116,066.88 = 39,960.72 : x
  2. Step 2: Convert to fraction form
    77,416.92/116,066.88 = 39,960.72/x
  3. Step 3: Cross multiply
    77,416.92x = 116,066.88 × 39,960.72
  4. Step 4: Simplify right side
    77,416.92x = 4,638,116,092.95
  5. Step 5: Solve for x
    x = 4,638,116,092.95/77,416.92
  6. Step 6: Final answer
    x = 59,910.88

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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.