Home / 79,034.02-109,173.45-63,231.46

Finding the Fourth Proportional to 79,034.02, 109,173.45 and 63,231.46

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Solution

The fourth proportional to 79,034.02, 109,173.45 and 63,231.46 is: 87,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,034.02 : 109,173.45 = 63,231.46 : x
  2. Step 2: Convert to fraction form
    79,034.02/109,173.45 = 63,231.46/x
  3. Step 3: Cross multiply
    79,034.02x = 109,173.45 × 63,231.46
  4. Step 4: Simplify right side
    79,034.02x = 6,903,196,636.74
  5. Step 5: Solve for x
    x = 6,903,196,636.74/79,034.02
  6. Step 6: Final answer
    x = 87,344.62

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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.