Home / 75,121.61-103,661.91-43,293.06

Finding the Fourth Proportional to 75,121.61, 103,661.91 and 43,293.06

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Solution

The fourth proportional to 75,121.61, 103,661.91 and 43,293.06 is: 59,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.61 : 103,661.91 = 43,293.06 : x
  2. Step 2: Convert to fraction form
    75,121.61/103,661.91 = 43,293.06/x
  3. Step 3: Cross multiply
    75,121.61x = 103,661.91 × 43,293.06
  4. Step 4: Simplify right side
    75,121.61x = 4,487,841,289.34
  5. Step 5: Solve for x
    x = 4,487,841,289.34/75,121.61
  6. Step 6: Final answer
    x = 59,741.02

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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.