Home / 57,508.12-78,937.20-51,079.96

Finding the Fourth Proportional to 57,508.12, 78,937.20 and 51,079.96

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Solution

The fourth proportional to 57,508.12, 78,937.20 and 51,079.96 is: 70,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,508.12 : 78,937.20 = 51,079.96 : x
  2. Step 2: Convert to fraction form
    57,508.12/78,937.20 = 51,079.96/x
  3. Step 3: Cross multiply
    57,508.12x = 78,937.20 × 51,079.96
  4. Step 4: Simplify right side
    57,508.12x = 4,032,109,018.51
  5. Step 5: Solve for x
    x = 4,032,109,018.51/57,508.12
  6. Step 6: Final answer
    x = 70,113.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.