Home / 90,807.42-125,243.24-58,986.57

Finding the Fourth Proportional to 90,807.42, 125,243.24 and 58,986.57

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Solution

The fourth proportional to 90,807.42, 125,243.24 and 58,986.57 is: 81,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,807.42 : 125,243.24 = 58,986.57 : x
  2. Step 2: Convert to fraction form
    90,807.42/125,243.24 = 58,986.57/x
  3. Step 3: Cross multiply
    90,807.42x = 125,243.24 × 58,986.57
  4. Step 4: Simplify right side
    90,807.42x = 7,387,668,848.35
  5. Step 5: Solve for x
    x = 7,387,668,848.35/90,807.42
  6. Step 6: Final answer
    x = 81,355.34

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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.