Home / 75,072.24-103,684.73-51,157.40

Finding the Fourth Proportional to 75,072.24, 103,684.73 and 51,157.40

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Solution

The fourth proportional to 75,072.24, 103,684.73 and 51,157.40 is: 70,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,072.24 : 103,684.73 = 51,157.40 : x
  2. Step 2: Convert to fraction form
    75,072.24/103,684.73 = 51,157.40/x
  3. Step 3: Cross multiply
    75,072.24x = 103,684.73 × 51,157.40
  4. Step 4: Simplify right side
    75,072.24x = 5,304,240,432.29
  5. Step 5: Solve for x
    x = 5,304,240,432.29/75,072.24
  6. Step 6: Final answer
    x = 70,655.15

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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.