Home / 91,968.31-126,950.95-53,740.28

Finding the Fourth Proportional to 91,968.31, 126,950.95 and 53,740.28

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Solution

The fourth proportional to 91,968.31, 126,950.95 and 53,740.28 is: 74,181.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,968.31 : 126,950.95 = 53,740.28 : x
  2. Step 2: Convert to fraction form
    91,968.31/126,950.95 = 53,740.28/x
  3. Step 3: Cross multiply
    91,968.31x = 126,950.95 × 53,740.28
  4. Step 4: Simplify right side
    91,968.31x = 6,822,380,324.13
  5. Step 5: Solve for x
    x = 6,822,380,324.13/91,968.31
  6. Step 6: Final answer
    x = 74,181.86

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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.