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Finding the Fourth Proportional to 65,356.60, 97,903.62 and 55,318.30

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Solution

The fourth proportional to 65,356.60, 97,903.62 and 55,318.30 is: 82,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,356.60 : 97,903.62 = 55,318.30 : x
  2. Step 2: Convert to fraction form
    65,356.60/97,903.62 = 55,318.30/x
  3. Step 3: Cross multiply
    65,356.60x = 97,903.62 × 55,318.30
  4. Step 4: Simplify right side
    65,356.60x = 5,415,861,822.25
  5. Step 5: Solve for x
    x = 5,415,861,822.25/65,356.60
  6. Step 6: Final answer
    x = 82,866.33

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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.