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Finding the Fourth Proportional to 65,354.32, 98,031 and 18,607.12

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Solution

The fourth proportional to 65,354.32, 98,031 and 18,607.12 is: 27,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.32 : 98,031 = 18,607.12 : x
  2. Step 2: Convert to fraction form
    65,354.32/98,031 = 18,607.12/x
  3. Step 3: Cross multiply
    65,354.32x = 98,031 × 18,607.12
  4. Step 4: Simplify right side
    65,354.32x = 1,824,074,580.72
  5. Step 5: Solve for x
    x = 1,824,074,580.72/65,354.32
  6. Step 6: Final answer
    x = 27,910.54

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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.