Home / 99,679.72-149,305.18-47,010.28

Finding the Fourth Proportional to 99,679.72, 149,305.18 and 47,010.28

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Solution

The fourth proportional to 99,679.72, 149,305.18 and 47,010.28 is: 70,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,679.72 : 149,305.18 = 47,010.28 : x
  2. Step 2: Convert to fraction form
    99,679.72/149,305.18 = 47,010.28/x
  3. Step 3: Cross multiply
    99,679.72x = 149,305.18 × 47,010.28
  4. Step 4: Simplify right side
    99,679.72x = 7,018,878,317.25
  5. Step 5: Solve for x
    x = 7,018,878,317.25/99,679.72
  6. Step 6: Final answer
    x = 70,414.31

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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.