Home / 79,146.14-109,221.28-43,335.50

Finding the Fourth Proportional to 79,146.14, 109,221.28 and 43,335.50

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Solution

The fourth proportional to 79,146.14, 109,221.28 and 43,335.50 is: 59,802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,146.14 : 109,221.28 = 43,335.50 : x
  2. Step 2: Convert to fraction form
    79,146.14/109,221.28 = 43,335.50/x
  3. Step 3: Cross multiply
    79,146.14x = 109,221.28 × 43,335.50
  4. Step 4: Simplify right side
    79,146.14x = 4,733,158,124.99
  5. Step 5: Solve for x
    x = 4,733,158,124.99/79,146.14
  6. Step 6: Final answer
    x = 59,802.77

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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.