Home / 91,265.88-125,899.74-57,751.32

Finding the Fourth Proportional to 91,265.88, 125,899.74 and 57,751.32

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Solution

The fourth proportional to 91,265.88, 125,899.74 and 57,751.32 is: 79,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,265.88 : 125,899.74 = 57,751.32 : x
  2. Step 2: Convert to fraction form
    91,265.88/125,899.74 = 57,751.32/x
  3. Step 3: Cross multiply
    91,265.88x = 125,899.74 × 57,751.32
  4. Step 4: Simplify right side
    91,265.88x = 7,270,876,172.66
  5. Step 5: Solve for x
    x = 7,270,876,172.66/91,265.88
  6. Step 6: Final answer
    x = 79,666.97

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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.