Home / 91,278.56-136,969.36-49,157.74

Finding the Fourth Proportional to 91,278.56, 136,969.36 and 49,157.74

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Solution

The fourth proportional to 91,278.56, 136,969.36 and 49,157.74 is: 73,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,278.56 : 136,969.36 = 49,157.74 : x
  2. Step 2: Convert to fraction form
    91,278.56/136,969.36 = 49,157.74/x
  3. Step 3: Cross multiply
    91,278.56x = 136,969.36 × 49,157.74
  4. Step 4: Simplify right side
    91,278.56x = 6,733,104,186.85
  5. Step 5: Solve for x
    x = 6,733,104,186.85/91,278.56
  6. Step 6: Final answer
    x = 73,764.36

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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.