Home / 91,631.44-126,274.44-65,089.36

Finding the Fourth Proportional to 91,631.44, 126,274.44 and 65,089.36

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Solution

The fourth proportional to 91,631.44, 126,274.44 and 65,089.36 is: 89,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,631.44 : 126,274.44 = 65,089.36 : x
  2. Step 2: Convert to fraction form
    91,631.44/126,274.44 = 65,089.36/x
  3. Step 3: Cross multiply
    91,631.44x = 126,274.44 × 65,089.36
  4. Step 4: Simplify right side
    91,631.44x = 8,219,122,483.96
  5. Step 5: Solve for x
    x = 8,219,122,483.96/91,631.44
  6. Step 6: Final answer
    x = 89,697.62

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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.