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Finding the Fourth Proportional to 65,439.60, 98,202.44 and 35,878.20

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Solution

The fourth proportional to 65,439.60, 98,202.44 and 35,878.20 is: 53,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,439.60 : 98,202.44 = 35,878.20 : x
  2. Step 2: Convert to fraction form
    65,439.60/98,202.44 = 35,878.20/x
  3. Step 3: Cross multiply
    65,439.60x = 98,202.44 × 35,878.20
  4. Step 4: Simplify right side
    65,439.60x = 3,523,326,782.81
  5. Step 5: Solve for x
    x = 3,523,326,782.81/65,439.60
  6. Step 6: Final answer
    x = 53,840.90

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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.