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Finding the Fourth Proportional to 65,473.08, 90,352.86 and 35,665.08

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Solution

The fourth proportional to 65,473.08, 90,352.86 and 35,665.08 is: 49,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,473.08 : 90,352.86 = 35,665.08 : x
  2. Step 2: Convert to fraction form
    65,473.08/90,352.86 = 35,665.08/x
  3. Step 3: Cross multiply
    65,473.08x = 90,352.86 × 35,665.08
  4. Step 4: Simplify right side
    65,473.08x = 3,222,441,980.13
  5. Step 5: Solve for x
    x = 3,222,441,980.13/65,473.08
  6. Step 6: Final answer
    x = 49,217.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.