Home / 75,820.59-113,642.42-57,040.20

Finding the Fourth Proportional to 75,820.59, 113,642.42 and 57,040.20

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Solution

The fourth proportional to 75,820.59, 113,642.42 and 57,040.20 is: 85,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,820.59 : 113,642.42 = 57,040.20 : x
  2. Step 2: Convert to fraction form
    75,820.59/113,642.42 = 57,040.20/x
  3. Step 3: Cross multiply
    75,820.59x = 113,642.42 × 57,040.20
  4. Step 4: Simplify right side
    75,820.59x = 6,482,186,080.08
  5. Step 5: Solve for x
    x = 6,482,186,080.08/75,820.59
  6. Step 6: Final answer
    x = 85,493.74

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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.