Home / 91,002.64-125,647.68-63,836.48

Finding the Fourth Proportional to 91,002.64, 125,647.68 and 63,836.48

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Solution

The fourth proportional to 91,002.64, 125,647.68 and 63,836.48 is: 88,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,002.64 : 125,647.68 = 63,836.48 : x
  2. Step 2: Convert to fraction form
    91,002.64/125,647.68 = 63,836.48/x
  3. Step 3: Cross multiply
    91,002.64x = 125,647.68 × 63,836.48
  4. Step 4: Simplify right side
    91,002.64x = 8,020,905,611.37
  5. Step 5: Solve for x
    x = 8,020,905,611.37/91,002.64
  6. Step 6: Final answer
    x = 88,139.26

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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.