Home / 54,102.13-74,639.77-31,437.06

Finding the Fourth Proportional to 54,102.13, 74,639.77 and 31,437.06

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Solution

The fourth proportional to 54,102.13, 74,639.77 and 31,437.06 is: 43,370.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,102.13 : 74,639.77 = 31,437.06 : x
  2. Step 2: Convert to fraction form
    54,102.13/74,639.77 = 31,437.06/x
  3. Step 3: Cross multiply
    54,102.13x = 74,639.77 × 31,437.06
  4. Step 4: Simplify right side
    54,102.13x = 2,346,454,927.88
  5. Step 5: Solve for x
    x = 2,346,454,927.88/54,102.13
  6. Step 6: Final answer
    x = 43,370.84

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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.