Home / 64,472.12-96,708.21-20,102.45

Finding the Fourth Proportional to 64,472.12, 96,708.21 and 20,102.45

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Solution

The fourth proportional to 64,472.12, 96,708.21 and 20,102.45 is: 30,153.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.12 : 96,708.21 = 20,102.45 : x
  2. Step 2: Convert to fraction form
    64,472.12/96,708.21 = 20,102.45/x
  3. Step 3: Cross multiply
    64,472.12x = 96,708.21 × 20,102.45
  4. Step 4: Simplify right side
    64,472.12x = 1,944,071,956.11
  5. Step 5: Solve for x
    x = 1,944,071,956.11/64,472.12
  6. Step 6: Final answer
    x = 30,153.68

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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.