Home / 75,130.56-103,687.20-41,607.36

Finding the Fourth Proportional to 75,130.56, 103,687.20 and 41,607.36

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Solution

The fourth proportional to 75,130.56, 103,687.20 and 41,607.36 is: 57,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,130.56 : 103,687.20 = 41,607.36 : x
  2. Step 2: Convert to fraction form
    75,130.56/103,687.20 = 41,607.36/x
  3. Step 3: Cross multiply
    75,130.56x = 103,687.20 × 41,607.36
  4. Step 4: Simplify right side
    75,130.56x = 4,314,150,657.79
  5. Step 5: Solve for x
    x = 4,314,150,657.79/75,130.56
  6. Step 6: Final answer
    x = 57,422.05

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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.