Home / 57,153.66-78,899.40-38,065.20

Finding the Fourth Proportional to 57,153.66, 78,899.40 and 38,065.20

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Solution

The fourth proportional to 57,153.66, 78,899.40 and 38,065.20 is: 52,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.66 : 78,899.40 = 38,065.20 : x
  2. Step 2: Convert to fraction form
    57,153.66/78,899.40 = 38,065.20/x
  3. Step 3: Cross multiply
    57,153.66x = 78,899.40 × 38,065.20
  4. Step 4: Simplify right side
    57,153.66x = 3,003,321,440.88
  5. Step 5: Solve for x
    x = 3,003,321,440.88/57,153.66
  6. Step 6: Final answer
    x = 52,548.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.