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Finding the Fourth Proportional to 65,538.64, 98,340 and 30,502.72

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Solution

The fourth proportional to 65,538.64, 98,340 and 30,502.72 is: 45,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,538.64 : 98,340 = 30,502.72 : x
  2. Step 2: Convert to fraction form
    65,538.64/98,340 = 30,502.72/x
  3. Step 3: Cross multiply
    65,538.64x = 98,340 × 30,502.72
  4. Step 4: Simplify right side
    65,538.64x = 2,999,637,484.80
  5. Step 5: Solve for x
    x = 2,999,637,484.80/65,538.64
  6. Step 6: Final answer
    x = 45,768.99

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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.