Home / 91,419.31-126,165.23-51,146.02

Finding the Fourth Proportional to 91,419.31, 126,165.23 and 51,146.02

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Solution

The fourth proportional to 91,419.31, 126,165.23 and 51,146.02 is: 70,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,419.31 : 126,165.23 = 51,146.02 : x
  2. Step 2: Convert to fraction form
    91,419.31/126,165.23 = 51,146.02/x
  3. Step 3: Cross multiply
    91,419.31x = 126,165.23 × 51,146.02
  4. Step 4: Simplify right side
    91,419.31x = 6,452,849,376.88
  5. Step 5: Solve for x
    x = 6,452,849,376.88/91,419.31
  6. Step 6: Final answer
    x = 70,585.19

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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.