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Finding the Fourth Proportional to 65,648.57, 98,452.81 and 43,158.32

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Solution

The fourth proportional to 65,648.57, 98,452.81 and 43,158.32 is: 64,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,648.57 : 98,452.81 = 43,158.32 : x
  2. Step 2: Convert to fraction form
    65,648.57/98,452.81 = 43,158.32/x
  3. Step 3: Cross multiply
    65,648.57x = 98,452.81 × 43,158.32
  4. Step 4: Simplify right side
    65,648.57x = 4,249,057,170.82
  5. Step 5: Solve for x
    x = 4,249,057,170.82/65,648.57
  6. Step 6: Final answer
    x = 64,724.29

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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.