Home / 91,997.78-126,955.42-51,160.28

Finding the Fourth Proportional to 91,997.78, 126,955.42 and 51,160.28

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Solution

The fourth proportional to 91,997.78, 126,955.42 and 51,160.28 is: 70,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,997.78 : 126,955.42 = 51,160.28 : x
  2. Step 2: Convert to fraction form
    91,997.78/126,955.42 = 51,160.28/x
  3. Step 3: Cross multiply
    91,997.78x = 126,955.42 × 51,160.28
  4. Step 4: Simplify right side
    91,997.78x = 6,495,074,072.04
  5. Step 5: Solve for x
    x = 6,495,074,072.04/91,997.78
  6. Step 6: Final answer
    x = 70,600.34

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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.