Home / 215,719.52-323,579.27-65,959.81

Finding the Fourth Proportional to 215,719.52, 323,579.27 and 65,959.81

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Solution

The fourth proportional to 215,719.52, 323,579.27 and 65,959.81 is: 98,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,719.52 : 323,579.27 = 65,959.81 : x
  2. Step 2: Convert to fraction form
    215,719.52/323,579.27 = 65,959.81/x
  3. Step 3: Cross multiply
    215,719.52x = 323,579.27 × 65,959.81
  4. Step 4: Simplify right side
    215,719.52x = 21,343,226,525.09
  5. Step 5: Solve for x
    x = 21,343,226,525.09/215,719.52
  6. Step 6: Final answer
    x = 98,939.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.