Home / 54,155.76-74,734.56-31,495.20

Finding the Fourth Proportional to 54,155.76, 74,734.56 and 31,495.20

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Solution

The fourth proportional to 54,155.76, 74,734.56 and 31,495.20 is: 43,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,155.76 : 74,734.56 = 31,495.20 : x
  2. Step 2: Convert to fraction form
    54,155.76/74,734.56 = 31,495.20/x
  3. Step 3: Cross multiply
    54,155.76x = 74,734.56 × 31,495.20
  4. Step 4: Simplify right side
    54,155.76x = 2,353,779,914.11
  5. Step 5: Solve for x
    x = 2,353,779,914.11/54,155.76
  6. Step 6: Final answer
    x = 43,463.15

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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.