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Finding the Fourth Proportional to 65,362.88, 98,060.63 and 18,615.76

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Solution

The fourth proportional to 65,362.88, 98,060.63 and 18,615.76 is: 27,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,362.88 : 98,060.63 = 18,615.76 : x
  2. Step 2: Convert to fraction form
    65,362.88/98,060.63 = 18,615.76/x
  3. Step 3: Cross multiply
    65,362.88x = 98,060.63 × 18,615.76
  4. Step 4: Simplify right side
    65,362.88x = 1,825,472,815.30
  5. Step 5: Solve for x
    x = 1,825,472,815.30/65,362.88
  6. Step 6: Final answer
    x = 27,928.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.