Home / 64,749.18-97,138.79-20,374.77

Finding the Fourth Proportional to 64,749.18, 97,138.79 and 20,374.77

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Solution

The fourth proportional to 64,749.18, 97,138.79 and 20,374.77 is: 30,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,749.18 : 97,138.79 = 20,374.77 : x
  2. Step 2: Convert to fraction form
    64,749.18/97,138.79 = 20,374.77/x
  3. Step 3: Cross multiply
    64,749.18x = 97,138.79 × 20,374.77
  4. Step 4: Simplify right side
    64,749.18x = 1,979,180,504.33
  5. Step 5: Solve for x
    x = 1,979,180,504.33/64,749.18
  6. Step 6: Final answer
    x = 30,566.88

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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.