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Finding the Fourth Proportional to 64,908.60, 97,355.70 and 53,201.40

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Solution

The fourth proportional to 64,908.60, 97,355.70 and 53,201.40 is: 79,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,908.60 : 97,355.70 = 53,201.40 : x
  2. Step 2: Convert to fraction form
    64,908.60/97,355.70 = 53,201.40/x
  3. Step 3: Cross multiply
    64,908.60x = 97,355.70 × 53,201.40
  4. Step 4: Simplify right side
    64,908.60x = 5,179,459,537.98
  5. Step 5: Solve for x
    x = 5,179,459,537.98/64,908.60
  6. Step 6: Final answer
    x = 79,796.20

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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.