Home / 74,331.13-102,582-42,065.75

Finding the Fourth Proportional to 74,331.13, 102,582 and 42,065.75

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Solution

The fourth proportional to 74,331.13, 102,582 and 42,065.75 is: 58,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,331.13 : 102,582 = 42,065.75 : x
  2. Step 2: Convert to fraction form
    74,331.13/102,582 = 42,065.75/x
  3. Step 3: Cross multiply
    74,331.13x = 102,582 × 42,065.75
  4. Step 4: Simplify right side
    74,331.13x = 4,315,188,766.50
  5. Step 5: Solve for x
    x = 4,315,188,766.50/74,331.13
  6. Step 6: Final answer
    x = 58,053.59

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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.