Home / 51,178.08-70,623.63-28,515.90

Finding the Fourth Proportional to 51,178.08, 70,623.63 and 28,515.90

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Solution

The fourth proportional to 51,178.08, 70,623.63 and 28,515.90 is: 39,350.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,178.08 : 70,623.63 = 28,515.90 : x
  2. Step 2: Convert to fraction form
    51,178.08/70,623.63 = 28,515.90/x
  3. Step 3: Cross multiply
    51,178.08x = 70,623.63 × 28,515.90
  4. Step 4: Simplify right side
    51,178.08x = 2,013,896,370.72
  5. Step 5: Solve for x
    x = 2,013,896,370.72/51,178.08
  6. Step 6: Final answer
    x = 39,350.76

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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.