Home / 91,278.36-136,858.95-38,007.27

Finding the Fourth Proportional to 91,278.36, 136,858.95 and 38,007.27

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Solution

The fourth proportional to 91,278.36, 136,858.95 and 38,007.27 is: 56,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,278.36 : 136,858.95 = 38,007.27 : x
  2. Step 2: Convert to fraction form
    91,278.36/136,858.95 = 38,007.27/x
  3. Step 3: Cross multiply
    91,278.36x = 136,858.95 × 38,007.27
  4. Step 4: Simplify right side
    91,278.36x = 5,201,635,064.57
  5. Step 5: Solve for x
    x = 5,201,635,064.57/91,278.36
  6. Step 6: Final answer
    x = 56,986.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.