Home / 57,398.40-86,126.16-38,435.76

Finding the Fourth Proportional to 57,398.40, 86,126.16 and 38,435.76

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Solution

The fourth proportional to 57,398.40, 86,126.16 and 38,435.76 is: 57,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,398.40 : 86,126.16 = 38,435.76 : x
  2. Step 2: Convert to fraction form
    57,398.40/86,126.16 = 38,435.76/x
  3. Step 3: Cross multiply
    57,398.40x = 86,126.16 × 38,435.76
  4. Step 4: Simplify right side
    57,398.40x = 3,310,324,415.48
  5. Step 5: Solve for x
    x = 3,310,324,415.48/57,398.40
  6. Step 6: Final answer
    x = 57,672.76

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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.