Home / 71,840.07-99,139.26-41,642.90

Finding the Fourth Proportional to 71,840.07, 99,139.26 and 41,642.90

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Solution

The fourth proportional to 71,840.07, 99,139.26 and 41,642.90 is: 57,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,840.07 : 99,139.26 = 41,642.90 : x
  2. Step 2: Convert to fraction form
    71,840.07/99,139.26 = 41,642.90/x
  3. Step 3: Cross multiply
    71,840.07x = 99,139.26 × 41,642.90
  4. Step 4: Simplify right side
    71,840.07x = 4,128,445,794.56
  5. Step 5: Solve for x
    x = 4,128,445,794.56/71,840.07
  6. Step 6: Final answer
    x = 57,467.17

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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.