Home / 53,360.87-73,640.83-30,703.30

Finding the Fourth Proportional to 53,360.87, 73,640.83 and 30,703.30

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Solution

The fourth proportional to 53,360.87, 73,640.83 and 30,703.30 is: 42,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,360.87 : 73,640.83 = 30,703.30 : x
  2. Step 2: Convert to fraction form
    53,360.87/73,640.83 = 30,703.30/x
  3. Step 3: Cross multiply
    53,360.87x = 73,640.83 × 30,703.30
  4. Step 4: Simplify right side
    53,360.87x = 2,261,016,495.74
  5. Step 5: Solve for x
    x = 2,261,016,495.74/53,360.87
  6. Step 6: Final answer
    x = 42,372.18

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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.