Home / 61,531.80-84,964.32-38,907.42

Finding the Fourth Proportional to 61,531.80, 84,964.32 and 38,907.42

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Solution

The fourth proportional to 61,531.80, 84,964.32 and 38,907.42 is: 53,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,531.80 : 84,964.32 = 38,907.42 : x
  2. Step 2: Convert to fraction form
    61,531.80/84,964.32 = 38,907.42/x
  3. Step 3: Cross multiply
    61,531.80x = 84,964.32 × 38,907.42
  4. Step 4: Simplify right side
    61,531.80x = 3,305,742,483.25
  5. Step 5: Solve for x
    x = 3,305,742,483.25/61,531.80
  6. Step 6: Final answer
    x = 53,724.13

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1.5x scale

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.