Home / 88,890.24-122,681.88-51,157.20

Finding the Fourth Proportional to 88,890.24, 122,681.88 and 51,157.20

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Solution

The fourth proportional to 88,890.24, 122,681.88 and 51,157.20 is: 70,604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,890.24 : 122,681.88 = 51,157.20 : x
  2. Step 2: Convert to fraction form
    88,890.24/122,681.88 = 51,157.20/x
  3. Step 3: Cross multiply
    88,890.24x = 122,681.88 × 51,157.20
  4. Step 4: Simplify right side
    88,890.24x = 6,276,061,471.54
  5. Step 5: Solve for x
    x = 6,276,061,471.54/88,890.24
  6. Step 6: Final answer
    x = 70,604.62

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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.