Home / 77,416.77-106,834.71-42,961.16

Finding the Fourth Proportional to 77,416.77, 106,834.71 and 42,961.16

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Solution

The fourth proportional to 77,416.77, 106,834.71 and 42,961.16 is: 59,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.77 : 106,834.71 = 42,961.16 : x
  2. Step 2: Convert to fraction form
    77,416.77/106,834.71 = 42,961.16/x
  3. Step 3: Cross multiply
    77,416.77x = 106,834.71 × 42,961.16
  4. Step 4: Simplify right side
    77,416.77x = 4,589,743,069.86
  5. Step 5: Solve for x
    x = 4,589,743,069.86/77,416.77
  6. Step 6: Final answer
    x = 59,286.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.