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Finding the Fourth Proportional to 70,759.61, 97,640.33 and 40,536.69

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Solution

The fourth proportional to 70,759.61, 97,640.33 and 40,536.69 is: 55,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.61 : 97,640.33 = 40,536.69 : x
  2. Step 2: Convert to fraction form
    70,759.61/97,640.33 = 40,536.69/x
  3. Step 3: Cross multiply
    70,759.61x = 97,640.33 × 40,536.69
  4. Step 4: Simplify right side
    70,759.61x = 3,958,015,586.02
  5. Step 5: Solve for x
    x = 3,958,015,586.02/70,759.61
  6. Step 6: Final answer
    x = 55,936.09

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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.