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Finding the Fourth Proportional to 64,840.56, 97,195.17 and 43,728.72

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Solution

The fourth proportional to 64,840.56, 97,195.17 and 43,728.72 is: 65,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,840.56 : 97,195.17 = 43,728.72 : x
  2. Step 2: Convert to fraction form
    64,840.56/97,195.17 = 43,728.72/x
  3. Step 3: Cross multiply
    64,840.56x = 97,195.17 × 43,728.72
  4. Step 4: Simplify right side
    64,840.56x = 4,250,220,374.28
  5. Step 5: Solve for x
    x = 4,250,220,374.28/64,840.56
  6. Step 6: Final answer
    x = 65,548.79

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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.