Home / 42,538.06-63,807.09-11,372.50

Finding the Fourth Proportional to 42,538.06, 63,807.09 and 11,372.50

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Solution

The fourth proportional to 42,538.06, 63,807.09 and 11,372.50 is: 17,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.06 : 63,807.09 = 11,372.50 : x
  2. Step 2: Convert to fraction form
    42,538.06/63,807.09 = 11,372.50/x
  3. Step 3: Cross multiply
    42,538.06x = 63,807.09 × 11,372.50
  4. Step 4: Simplify right side
    42,538.06x = 725,646,131.03
  5. Step 5: Solve for x
    x = 725,646,131.03/42,538.06
  6. Step 6: Final answer
    x = 17,058.75

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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.