Home / 91,197.43-125,854.58-57,207.35

Finding the Fourth Proportional to 91,197.43, 125,854.58 and 57,207.35

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Solution

The fourth proportional to 91,197.43, 125,854.58 and 57,207.35 is: 78,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,197.43 : 125,854.58 = 57,207.35 : x
  2. Step 2: Convert to fraction form
    91,197.43/125,854.58 = 57,207.35/x
  3. Step 3: Cross multiply
    91,197.43x = 125,854.58 × 57,207.35
  4. Step 4: Simplify right side
    91,197.43x = 7,199,807,143.03
  5. Step 5: Solve for x
    x = 7,199,807,143.03/91,197.43
  6. Step 6: Final answer
    x = 78,947.48

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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.