Home / 64,644.12-96,966.72-20,277.72

Finding the Fourth Proportional to 64,644.12, 96,966.72 and 20,277.72

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Solution

The fourth proportional to 64,644.12, 96,966.72 and 20,277.72 is: 30,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,644.12 : 96,966.72 = 20,277.72 : x
  2. Step 2: Convert to fraction form
    64,644.12/96,966.72 = 20,277.72/x
  3. Step 3: Cross multiply
    64,644.12x = 96,966.72 × 20,277.72
  4. Step 4: Simplify right side
    64,644.12x = 1,966,263,997.48
  5. Step 5: Solve for x
    x = 1,966,263,997.48/64,644.12
  6. Step 6: Final answer
    x = 30,416.75

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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.