Home / 91,301.10-125,928.78-61,033.20

Finding the Fourth Proportional to 91,301.10, 125,928.78 and 61,033.20

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Solution

The fourth proportional to 91,301.10, 125,928.78 and 61,033.20 is: 84,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,301.10 : 125,928.78 = 61,033.20 : x
  2. Step 2: Convert to fraction form
    91,301.10/125,928.78 = 61,033.20/x
  3. Step 3: Cross multiply
    91,301.10x = 125,928.78 × 61,033.20
  4. Step 4: Simplify right side
    91,301.10x = 7,685,836,415.50
  5. Step 5: Solve for x
    x = 7,685,836,415.50/91,301.10
  6. Step 6: Final answer
    x = 84,181.20

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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.