Home / 91,805.36-126,662.52-51,513.20

Finding the Fourth Proportional to 91,805.36, 126,662.52 and 51,513.20

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Solution

The fourth proportional to 91,805.36, 126,662.52 and 51,513.20 is: 71,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,805.36 : 126,662.52 = 51,513.20 : x
  2. Step 2: Convert to fraction form
    91,805.36/126,662.52 = 51,513.20/x
  3. Step 3: Cross multiply
    91,805.36x = 126,662.52 × 51,513.20
  4. Step 4: Simplify right side
    91,805.36x = 6,524,791,725.26
  5. Step 5: Solve for x
    x = 6,524,791,725.26/91,805.36
  6. Step 6: Final answer
    x = 71,072.01

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1.5x scale

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.