Home / 51,115.50-70,528.77-29,890.66

Finding the Fourth Proportional to 51,115.50, 70,528.77 and 29,890.66

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Solution

The fourth proportional to 51,115.50, 70,528.77 and 29,890.66 is: 41,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,115.50 : 70,528.77 = 29,890.66 : x
  2. Step 2: Convert to fraction form
    51,115.50/70,528.77 = 29,890.66/x
  3. Step 3: Cross multiply
    51,115.50x = 70,528.77 × 29,890.66
  4. Step 4: Simplify right side
    51,115.50x = 2,108,151,484.29
  5. Step 5: Solve for x
    x = 2,108,151,484.29/51,115.50
  6. Step 6: Final answer
    x = 41,242.90

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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.