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Finding the Fourth Proportional to 81,175.83, 112,027.62 and 45,368.70

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Solution

The fourth proportional to 81,175.83, 112,027.62 and 45,368.70 is: 62,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.83 : 112,027.62 = 45,368.70 : x
  2. Step 2: Convert to fraction form
    81,175.83/112,027.62 = 45,368.70/x
  3. Step 3: Cross multiply
    81,175.83x = 112,027.62 × 45,368.70
  4. Step 4: Simplify right side
    81,175.83x = 5,082,547,483.49
  5. Step 5: Solve for x
    x = 5,082,547,483.49/81,175.83
  6. Step 6: Final answer
    x = 62,611.59

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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.