Home / 91,213.28-136,597.57-51,650.45

Finding the Fourth Proportional to 91,213.28, 136,597.57 and 51,650.45

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Solution

The fourth proportional to 91,213.28, 136,597.57 and 51,650.45 is: 77,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213.28 : 136,597.57 = 51,650.45 : x
  2. Step 2: Convert to fraction form
    91,213.28/136,597.57 = 51,650.45/x
  3. Step 3: Cross multiply
    91,213.28x = 136,597.57 × 51,650.45
  4. Step 4: Simplify right side
    91,213.28x = 7,055,325,959.41
  5. Step 5: Solve for x
    x = 7,055,325,959.41/91,213.28
  6. Step 6: Final answer
    x = 77,349.77

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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.