Home / 79,425.47-109,608.40-43,126.89

Finding the Fourth Proportional to 79,425.47, 109,608.40 and 43,126.89

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Solution

The fourth proportional to 79,425.47, 109,608.40 and 43,126.89 is: 59,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,425.47 : 109,608.40 = 43,126.89 : x
  2. Step 2: Convert to fraction form
    79,425.47/109,608.40 = 43,126.89/x
  3. Step 3: Cross multiply
    79,425.47x = 109,608.40 × 43,126.89
  4. Step 4: Simplify right side
    79,425.47x = 4,727,069,194.24
  5. Step 5: Solve for x
    x = 4,727,069,194.24/79,425.47
  6. Step 6: Final answer
    x = 59,515.79

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1.5x scale

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.