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Finding the Fourth Proportional to 74,260.60, 111,390.90 and 65,512.60

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Solution

The fourth proportional to 74,260.60, 111,390.90 and 65,512.60 is: 98,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.60 : 111,390.90 = 65,512.60 : x
  2. Step 2: Convert to fraction form
    74,260.60/111,390.90 = 65,512.60/x
  3. Step 3: Cross multiply
    74,260.60x = 111,390.90 × 65,512.60
  4. Step 4: Simplify right side
    74,260.60x = 7,297,507,475.34
  5. Step 5: Solve for x
    x = 7,297,507,475.34/74,260.60
  6. Step 6: Final answer
    x = 98,268.90

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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.