Home / 64,278.81-96,433.20-19,903.19

Finding the Fourth Proportional to 64,278.81, 96,433.20 and 19,903.19

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Solution

The fourth proportional to 64,278.81, 96,433.20 and 19,903.19 is: 29,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,278.81 : 96,433.20 = 19,903.19 : x
  2. Step 2: Convert to fraction form
    64,278.81/96,433.20 = 19,903.19/x
  3. Step 3: Cross multiply
    64,278.81x = 96,433.20 × 19,903.19
  4. Step 4: Simplify right side
    64,278.81x = 1,919,327,819.74
  5. Step 5: Solve for x
    x = 1,919,327,819.74/64,278.81
  6. Step 6: Final answer
    x = 29,859.42

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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.