Home / 91,530.05-126,370.21-62,840.48

Finding the Fourth Proportional to 91,530.05, 126,370.21 and 62,840.48

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Solution

The fourth proportional to 91,530.05, 126,370.21 and 62,840.48 is: 86,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,530.05 : 126,370.21 = 62,840.48 : x
  2. Step 2: Convert to fraction form
    91,530.05/126,370.21 = 62,840.48/x
  3. Step 3: Cross multiply
    91,530.05x = 126,370.21 × 62,840.48
  4. Step 4: Simplify right side
    91,530.05x = 7,941,165,314.33
  5. Step 5: Solve for x
    x = 7,941,165,314.33/91,530.05
  6. Step 6: Final answer
    x = 86,760.20

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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.