Home / 89,720.34-123,810.23-51,453.32

Finding the Fourth Proportional to 89,720.34, 123,810.23 and 51,453.32

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Solution

The fourth proportional to 89,720.34, 123,810.23 and 51,453.32 is: 71,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,720.34 : 123,810.23 = 51,453.32 : x
  2. Step 2: Convert to fraction form
    89,720.34/123,810.23 = 51,453.32/x
  3. Step 3: Cross multiply
    89,720.34x = 123,810.23 × 51,453.32
  4. Step 4: Simplify right side
    89,720.34x = 6,370,446,507.15
  5. Step 5: Solve for x
    x = 6,370,446,507.15/89,720.34
  6. Step 6: Final answer
    x = 71,003.37

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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.