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Finding the Fourth Proportional to 65,448.72, 98,170.97 and 18,701.55

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Solution

The fourth proportional to 65,448.72, 98,170.97 and 18,701.55 is: 28,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,448.72 : 98,170.97 = 18,701.55 : x
  2. Step 2: Convert to fraction form
    65,448.72/98,170.97 = 18,701.55/x
  3. Step 3: Cross multiply
    65,448.72x = 98,170.97 × 18,701.55
  4. Step 4: Simplify right side
    65,448.72x = 1,835,949,210.50
  5. Step 5: Solve for x
    x = 1,835,949,210.50/65,448.72
  6. Step 6: Final answer
    x = 28,051.72

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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.