Home / 75,133.37-112,689.02-28,375.31

Finding the Fourth Proportional to 75,133.37, 112,689.02 and 28,375.31

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Solution

The fourth proportional to 75,133.37, 112,689.02 and 28,375.31 is: 42,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,133.37 : 112,689.02 = 28,375.31 : x
  2. Step 2: Convert to fraction form
    75,133.37/112,689.02 = 28,375.31/x
  3. Step 3: Cross multiply
    75,133.37x = 112,689.02 × 28,375.31
  4. Step 4: Simplify right side
    75,133.37x = 3,197,586,228.76
  5. Step 5: Solve for x
    x = 3,197,586,228.76/75,133.37
  6. Step 6: Final answer
    x = 42,558.80

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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.