Home / 75,113.90-103,663.08-43,293.05

Finding the Fourth Proportional to 75,113.90, 103,663.08 and 43,293.05

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Solution

The fourth proportional to 75,113.90, 103,663.08 and 43,293.05 is: 59,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,113.90 : 103,663.08 = 43,293.05 : x
  2. Step 2: Convert to fraction form
    75,113.90/103,663.08 = 43,293.05/x
  3. Step 3: Cross multiply
    75,113.90x = 103,663.08 × 43,293.05
  4. Step 4: Simplify right side
    75,113.90x = 4,487,890,905.59
  5. Step 5: Solve for x
    x = 4,487,890,905.59/75,113.90
  6. Step 6: Final answer
    x = 59,747.81

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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.