Home / 53,279.10-79,961.85-51,551.10

Finding the Fourth Proportional to 53,279.10, 79,961.85 and 51,551.10

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Solution

The fourth proportional to 53,279.10, 79,961.85 and 51,551.10 is: 77,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,279.10 : 79,961.85 = 51,551.10 : x
  2. Step 2: Convert to fraction form
    53,279.10/79,961.85 = 51,551.10/x
  3. Step 3: Cross multiply
    53,279.10x = 79,961.85 × 51,551.10
  4. Step 4: Simplify right side
    53,279.10x = 4,122,121,325.54
  5. Step 5: Solve for x
    x = 4,122,121,325.54/53,279.10
  6. Step 6: Final answer
    x = 77,368.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.