Home / 75,136.64-103,688.38-43,305.26

Finding the Fourth Proportional to 75,136.64, 103,688.38 and 43,305.26

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Solution

The fourth proportional to 75,136.64, 103,688.38 and 43,305.26 is: 59,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.64 : 103,688.38 = 43,305.26 : x
  2. Step 2: Convert to fraction form
    75,136.64/103,688.38 = 43,305.26/x
  3. Step 3: Cross multiply
    75,136.64x = 103,688.38 × 43,305.26
  4. Step 4: Simplify right side
    75,136.64x = 4,490,252,254.88
  5. Step 5: Solve for x
    x = 4,490,252,254.88/75,136.64
  6. Step 6: Final answer
    x = 59,761.15

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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.