Home / 79,085.46-109,145.36-47,253.68

Finding the Fourth Proportional to 79,085.46, 109,145.36 and 47,253.68

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Solution

The fourth proportional to 79,085.46, 109,145.36 and 47,253.68 is: 65,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.46 : 109,145.36 = 47,253.68 : x
  2. Step 2: Convert to fraction form
    79,085.46/109,145.36 = 47,253.68/x
  3. Step 3: Cross multiply
    79,085.46x = 109,145.36 × 47,253.68
  4. Step 4: Simplify right side
    79,085.46x = 5,157,519,132.93
  5. Step 5: Solve for x
    x = 5,157,519,132.93/79,085.46
  6. Step 6: Final answer
    x = 65,214.51

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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.