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Finding the Fourth Proportional to 65,961, 91,026.18 and 36,152.36

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Solution

The fourth proportional to 65,961, 91,026.18 and 36,152.36 is: 49,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,961 : 91,026.18 = 36,152.36 : x
  2. Step 2: Convert to fraction form
    65,961/91,026.18 = 36,152.36/x
  3. Step 3: Cross multiply
    65,961x = 91,026.18 × 36,152.36
  4. Step 4: Simplify right side
    65,961x = 3,290,811,228.78
  5. Step 5: Solve for x
    x = 3,290,811,228.78/65,961
  6. Step 6: Final answer
    x = 49,890.26

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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.