Home / 75,159.21-103,669.79-48,335.64

Finding the Fourth Proportional to 75,159.21, 103,669.79 and 48,335.64

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Solution

The fourth proportional to 75,159.21, 103,669.79 and 48,335.64 is: 66,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.21 : 103,669.79 = 48,335.64 : x
  2. Step 2: Convert to fraction form
    75,159.21/103,669.79 = 48,335.64/x
  3. Step 3: Cross multiply
    75,159.21x = 103,669.79 × 48,335.64
  4. Step 4: Simplify right side
    75,159.21x = 5,010,945,406.64
  5. Step 5: Solve for x
    x = 5,010,945,406.64/75,159.21
  6. Step 6: Final answer
    x = 66,671.08

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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.