Home / 61,639.14-84,914.40-58,637.55

Finding the Fourth Proportional to 61,639.14, 84,914.40 and 58,637.55

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Solution

The fourth proportional to 61,639.14, 84,914.40 and 58,637.55 is: 80,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,639.14 : 84,914.40 = 58,637.55 : x
  2. Step 2: Convert to fraction form
    61,639.14/84,914.40 = 58,637.55/x
  3. Step 3: Cross multiply
    61,639.14x = 84,914.40 × 58,637.55
  4. Step 4: Simplify right side
    61,639.14x = 4,979,172,375.72
  5. Step 5: Solve for x
    x = 4,979,172,375.72/61,639.14
  6. Step 6: Final answer
    x = 80,779.39

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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.