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Finding the Fourth Proportional to 73,190.72, 101,004 and 39,656.80

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Solution

The fourth proportional to 73,190.72, 101,004 and 39,656.80 is: 54,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,190.72 : 101,004 = 39,656.80 : x
  2. Step 2: Convert to fraction form
    73,190.72/101,004 = 39,656.80/x
  3. Step 3: Cross multiply
    73,190.72x = 101,004 × 39,656.80
  4. Step 4: Simplify right side
    73,190.72x = 4,005,495,427.20
  5. Step 5: Solve for x
    x = 4,005,495,427.20/73,190.72
  6. Step 6: Final answer
    x = 54,726.82

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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.