Home / 61,143.14-84,341.79-38,446.20

Finding the Fourth Proportional to 61,143.14, 84,341.79 and 38,446.20

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Solution

The fourth proportional to 61,143.14, 84,341.79 and 38,446.20 is: 53,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.14 : 84,341.79 = 38,446.20 : x
  2. Step 2: Convert to fraction form
    61,143.14/84,341.79 = 38,446.20/x
  3. Step 3: Cross multiply
    61,143.14x = 84,341.79 × 38,446.20
  4. Step 4: Simplify right side
    61,143.14x = 3,242,621,326.70
  5. Step 5: Solve for x
    x = 3,242,621,326.70/61,143.14
  6. Step 6: Final answer
    x = 53,033.28

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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.