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Finding the Fourth Proportional to 65,235.75, 97,853.63 and 15,987.75

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Solution

The fourth proportional to 65,235.75, 97,853.63 and 15,987.75 is: 23,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,235.75 : 97,853.63 = 15,987.75 : x
  2. Step 2: Convert to fraction form
    65,235.75/97,853.63 = 15,987.75/x
  3. Step 3: Cross multiply
    65,235.75x = 97,853.63 × 15,987.75
  4. Step 4: Simplify right side
    65,235.75x = 1,564,459,373.03
  5. Step 5: Solve for x
    x = 1,564,459,373.03/65,235.75
  6. Step 6: Final answer
    x = 23,981.63

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Similar ratio
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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.