Home / 75,009.41-103,464.21-48,109.31

Finding the Fourth Proportional to 75,009.41, 103,464.21 and 48,109.31

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Solution

The fourth proportional to 75,009.41, 103,464.21 and 48,109.31 is: 66,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.41 : 103,464.21 = 48,109.31 : x
  2. Step 2: Convert to fraction form
    75,009.41/103,464.21 = 48,109.31/x
  3. Step 3: Cross multiply
    75,009.41x = 103,464.21 × 48,109.31
  4. Step 4: Simplify right side
    75,009.41x = 4,977,592,011.46
  5. Step 5: Solve for x
    x = 4,977,592,011.46/75,009.41
  6. Step 6: Final answer
    x = 66,359.57

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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.