Home / 65,298.22-90,085.64-42,629.96

Finding the Fourth Proportional to 65,298.22, 90,085.64 and 42,629.96

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Solution

The fourth proportional to 65,298.22, 90,085.64 and 42,629.96 is: 58,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,298.22 : 90,085.64 = 42,629.96 : x
  2. Step 2: Convert to fraction form
    65,298.22/90,085.64 = 42,629.96/x
  3. Step 3: Cross multiply
    65,298.22x = 90,085.64 × 42,629.96
  4. Step 4: Simplify right side
    65,298.22x = 3,840,347,241.84
  5. Step 5: Solve for x
    x = 3,840,347,241.84/65,298.22
  6. Step 6: Final answer
    x = 58,812.44

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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.