Home / 115,137.47-172,729.49-48,577.76

Finding the Fourth Proportional to 115,137.47, 172,729.49 and 48,577.76

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Solution

The fourth proportional to 115,137.47, 172,729.49 and 48,577.76 is: 72,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,137.47 : 172,729.49 = 48,577.76 : x
  2. Step 2: Convert to fraction form
    115,137.47/172,729.49 = 48,577.76/x
  3. Step 3: Cross multiply
    115,137.47x = 172,729.49 × 48,577.76
  4. Step 4: Simplify right side
    115,137.47x = 8,390,811,467.25
  5. Step 5: Solve for x
    x = 8,390,811,467.25/115,137.47
  6. Step 6: Final answer
    x = 72,876.46

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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.