Home / 54,281.18-81,331.74-38,407.53

Finding the Fourth Proportional to 54,281.18, 81,331.74 and 38,407.53

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Solution

The fourth proportional to 54,281.18, 81,331.74 and 38,407.53 is: 57,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,281.18 : 81,331.74 = 38,407.53 : x
  2. Step 2: Convert to fraction form
    54,281.18/81,331.74 = 38,407.53/x
  3. Step 3: Cross multiply
    54,281.18x = 81,331.74 × 38,407.53
  4. Step 4: Simplify right side
    54,281.18x = 3,123,751,091.51
  5. Step 5: Solve for x
    x = 3,123,751,091.51/54,281.18
  6. Step 6: Final answer
    x = 57,547.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.