Home / 79,239.09-109,349.72-42,941.54

Finding the Fourth Proportional to 79,239.09, 109,349.72 and 42,941.54

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Solution

The fourth proportional to 79,239.09, 109,349.72 and 42,941.54 is: 59,259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.09 : 109,349.72 = 42,941.54 : x
  2. Step 2: Convert to fraction form
    79,239.09/109,349.72 = 42,941.54/x
  3. Step 3: Cross multiply
    79,239.09x = 109,349.72 × 42,941.54
  4. Step 4: Simplify right side
    79,239.09x = 4,695,645,715.84
  5. Step 5: Solve for x
    x = 4,695,645,715.84/79,239.09
  6. Step 6: Final answer
    x = 59,259.21

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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.