Home / 75,825.12-113,689.02-31,482.48

Finding the Fourth Proportional to 75,825.12, 113,689.02 and 31,482.48

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Solution

The fourth proportional to 75,825.12, 113,689.02 and 31,482.48 is: 47,203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,825.12 : 113,689.02 = 31,482.48 : x
  2. Step 2: Convert to fraction form
    75,825.12/113,689.02 = 31,482.48/x
  3. Step 3: Cross multiply
    75,825.12x = 113,689.02 × 31,482.48
  4. Step 4: Simplify right side
    75,825.12x = 3,579,212,298.37
  5. Step 5: Solve for x
    x = 3,579,212,298.37/75,825.12
  6. Step 6: Final answer
    x = 47,203.52

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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.