Home / 76,859.64-106,066.07-42,868.17

Finding the Fourth Proportional to 76,859.64, 106,066.07 and 42,868.17

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Solution

The fourth proportional to 76,859.64, 106,066.07 and 42,868.17 is: 59,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,859.64 : 106,066.07 = 42,868.17 : x
  2. Step 2: Convert to fraction form
    76,859.64/106,066.07 = 42,868.17/x
  3. Step 3: Cross multiply
    76,859.64x = 106,066.07 × 42,868.17
  4. Step 4: Simplify right side
    76,859.64x = 4,546,858,105.65
  5. Step 5: Solve for x
    x = 4,546,858,105.65/76,859.64
  6. Step 6: Final answer
    x = 59,157.94

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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.