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Finding the Fourth Proportional to 65,643.58, 98,441.05 and 51,630.85

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Solution

The fourth proportional to 65,643.58, 98,441.05 and 51,630.85 is: 77,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,643.58 : 98,441.05 = 51,630.85 : x
  2. Step 2: Convert to fraction form
    65,643.58/98,441.05 = 51,630.85/x
  3. Step 3: Cross multiply
    65,643.58x = 98,441.05 × 51,630.85
  4. Step 4: Simplify right side
    65,643.58x = 5,082,595,086.39
  5. Step 5: Solve for x
    x = 5,082,595,086.39/65,643.58
  6. Step 6: Final answer
    x = 77,427.15

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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.