Home / 90,986.30-125,561.60-52,768.50

Finding the Fourth Proportional to 90,986.30, 125,561.60 and 52,768.50

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Solution

The fourth proportional to 90,986.30, 125,561.60 and 52,768.50 is: 72,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,986.30 : 125,561.60 = 52,768.50 : x
  2. Step 2: Convert to fraction form
    90,986.30/125,561.60 = 52,768.50/x
  3. Step 3: Cross multiply
    90,986.30x = 125,561.60 × 52,768.50
  4. Step 4: Simplify right side
    90,986.30x = 6,625,697,289.60
  5. Step 5: Solve for x
    x = 6,625,697,289.60/90,986.30
  6. Step 6: Final answer
    x = 72,820.82

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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.