Home / 66,031.68-99,048.48-21,661.92

Finding the Fourth Proportional to 66,031.68, 99,048.48 and 21,661.92

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Solution

The fourth proportional to 66,031.68, 99,048.48 and 21,661.92 is: 32,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,031.68 : 99,048.48 = 21,661.92 : x
  2. Step 2: Convert to fraction form
    66,031.68/99,048.48 = 21,661.92/x
  3. Step 3: Cross multiply
    66,031.68x = 99,048.48 × 21,661.92
  4. Step 4: Simplify right side
    66,031.68x = 2,145,580,249.88
  5. Step 5: Solve for x
    x = 2,145,580,249.88/66,031.68
  6. Step 6: Final answer
    x = 32,493.19

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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.