Home / 59,780.12-82,406.40-49,151.30

Finding the Fourth Proportional to 59,780.12, 82,406.40 and 49,151.30

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Solution

The fourth proportional to 59,780.12, 82,406.40 and 49,151.30 is: 67,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,780.12 : 82,406.40 = 49,151.30 : x
  2. Step 2: Convert to fraction form
    59,780.12/82,406.40 = 49,151.30/x
  3. Step 3: Cross multiply
    59,780.12x = 82,406.40 × 49,151.30
  4. Step 4: Simplify right side
    59,780.12x = 4,050,381,276.29
  5. Step 5: Solve for x
    x = 4,050,381,276.29/59,780.12
  6. Step 6: Final answer
    x = 67,754.66

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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.