Home / 79,239.13-109,350.86-43,428.37

Finding the Fourth Proportional to 79,239.13, 109,350.86 and 43,428.37

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Solution

The fourth proportional to 79,239.13, 109,350.86 and 43,428.37 is: 59,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.13 : 109,350.86 = 43,428.37 : x
  2. Step 2: Convert to fraction form
    79,239.13/109,350.86 = 43,428.37/x
  3. Step 3: Cross multiply
    79,239.13x = 109,350.86 × 43,428.37
  4. Step 4: Simplify right side
    79,239.13x = 4,748,929,607.90
  5. Step 5: Solve for x
    x = 4,748,929,607.90/79,239.13
  6. Step 6: Final answer
    x = 59,931.62

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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.