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Finding the Fourth Proportional to 51,174, 70,620.58 and 29,953.72

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Solution

The fourth proportional to 51,174, 70,620.58 and 29,953.72 is: 41,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,174 : 70,620.58 = 29,953.72 : x
  2. Step 2: Convert to fraction form
    51,174/70,620.58 = 29,953.72/x
  3. Step 3: Cross multiply
    51,174x = 70,620.58 × 29,953.72
  4. Step 4: Simplify right side
    51,174x = 2,115,349,036.79
  5. Step 5: Solve for x
    x = 2,115,349,036.79/51,174
  6. Step 6: Final answer
    x = 41,336.40

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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.