Home / 54,101.13-74,638.40-31,436.06

Finding the Fourth Proportional to 54,101.13, 74,638.40 and 31,436.06

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Solution

The fourth proportional to 54,101.13, 74,638.40 and 31,436.06 is: 43,369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,101.13 : 74,638.40 = 31,436.06 : x
  2. Step 2: Convert to fraction form
    54,101.13/74,638.40 = 31,436.06/x
  3. Step 3: Cross multiply
    54,101.13x = 74,638.40 × 31,436.06
  4. Step 4: Simplify right side
    54,101.13x = 2,346,337,250.12
  5. Step 5: Solve for x
    x = 2,346,337,250.12/54,101.13
  6. Step 6: Final answer
    x = 43,369.47

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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.