Home / 75,852.28-113,693.64-28,421.74

Finding the Fourth Proportional to 75,852.28, 113,693.64 and 28,421.74

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Solution

The fourth proportional to 75,852.28, 113,693.64 and 28,421.74 is: 42,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,852.28 : 113,693.64 = 28,421.74 : x
  2. Step 2: Convert to fraction form
    75,852.28/113,693.64 = 28,421.74/x
  3. Step 3: Cross multiply
    75,852.28x = 113,693.64 × 28,421.74
  4. Step 4: Simplify right side
    75,852.28x = 3,231,371,075.73
  5. Step 5: Solve for x
    x = 3,231,371,075.73/75,852.28
  6. Step 6: Final answer
    x = 42,600.84

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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.