Home / 79,077.76-109,126.86-43,267.12

Finding the Fourth Proportional to 79,077.76, 109,126.86 and 43,267.12

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Solution

The fourth proportional to 79,077.76, 109,126.86 and 43,267.12 is: 59,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.76 : 109,126.86 = 43,267.12 : x
  2. Step 2: Convert to fraction form
    79,077.76/109,126.86 = 43,267.12/x
  3. Step 3: Cross multiply
    79,077.76x = 109,126.86 × 43,267.12
  4. Step 4: Simplify right side
    79,077.76x = 4,721,604,946.84
  5. Step 5: Solve for x
    x = 4,721,604,946.84/79,077.76
  6. Step 6: Final answer
    x = 59,708.38

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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.