Home / 61,139.05-84,336.06-38,442.08

Finding the Fourth Proportional to 61,139.05, 84,336.06 and 38,442.08

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Solution

The fourth proportional to 61,139.05, 84,336.06 and 38,442.08 is: 53,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,139.05 : 84,336.06 = 38,442.08 : x
  2. Step 2: Convert to fraction form
    61,139.05/84,336.06 = 38,442.08/x
  3. Step 3: Cross multiply
    61,139.05x = 84,336.06 × 38,442.08
  4. Step 4: Simplify right side
    61,139.05x = 3,242,053,565.40
  5. Step 5: Solve for x
    x = 3,242,053,565.40/61,139.05
  6. Step 6: Final answer
    x = 53,027.54

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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.