Home / 75,631.28-104,343.06-75,514.64

Finding the Fourth Proportional to 75,631.28, 104,343.06 and 75,514.64

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Solution

The fourth proportional to 75,631.28, 104,343.06 and 75,514.64 is: 104,182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.28 : 104,343.06 = 75,514.64 : x
  2. Step 2: Convert to fraction form
    75,631.28/104,343.06 = 75,514.64/x
  3. Step 3: Cross multiply
    75,631.28x = 104,343.06 × 75,514.64
  4. Step 4: Simplify right side
    75,631.28x = 7,879,428,612.40
  5. Step 5: Solve for x
    x = 7,879,428,612.40/75,631.28
  6. Step 6: Final answer
    x = 104,182.14

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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.