Home / 61,399.82-84,724.18-38,730.25

Finding the Fourth Proportional to 61,399.82, 84,724.18 and 38,730.25

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Solution

The fourth proportional to 61,399.82, 84,724.18 and 38,730.25 is: 53,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,399.82 : 84,724.18 = 38,730.25 : x
  2. Step 2: Convert to fraction form
    61,399.82/84,724.18 = 38,730.25/x
  3. Step 3: Cross multiply
    61,399.82x = 84,724.18 × 38,730.25
  4. Step 4: Simplify right side
    61,399.82x = 3,281,388,681.52
  5. Step 5: Solve for x
    x = 3,281,388,681.52/61,399.82
  6. Step 6: Final answer
    x = 53,442.97

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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.