Home / 79,086.02-109,135.45-47,272.46

Finding the Fourth Proportional to 79,086.02, 109,135.45 and 47,272.46

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Solution

The fourth proportional to 79,086.02, 109,135.45 and 47,272.46 is: 65,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,086.02 : 109,135.45 = 47,272.46 : x
  2. Step 2: Convert to fraction form
    79,086.02/109,135.45 = 47,272.46/x
  3. Step 3: Cross multiply
    79,086.02x = 109,135.45 × 47,272.46
  4. Step 4: Simplify right side
    79,086.02x = 5,159,101,194.71
  5. Step 5: Solve for x
    x = 5,159,101,194.71/79,086.02
  6. Step 6: Final answer
    x = 65,234.05

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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.