Home / 91,415.43-126,159.75-51,132.96

Finding the Fourth Proportional to 91,415.43, 126,159.75 and 51,132.96

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Solution

The fourth proportional to 91,415.43, 126,159.75 and 51,132.96 is: 70,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,415.43 : 126,159.75 = 51,132.96 : x
  2. Step 2: Convert to fraction form
    91,415.43/126,159.75 = 51,132.96/x
  3. Step 3: Cross multiply
    91,415.43x = 126,159.75 × 51,132.96
  4. Step 4: Simplify right side
    91,415.43x = 6,450,921,450.36
  5. Step 5: Solve for x
    x = 6,450,921,450.36/91,415.43
  6. Step 6: Final answer
    x = 70,567.10

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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.