Home / 75,479.13-104,134.64-45,274.23

Finding the Fourth Proportional to 75,479.13, 104,134.64 and 45,274.23

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Solution

The fourth proportional to 75,479.13, 104,134.64 and 45,274.23 is: 62,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479.13 : 104,134.64 = 45,274.23 : x
  2. Step 2: Convert to fraction form
    75,479.13/104,134.64 = 45,274.23/x
  3. Step 3: Cross multiply
    75,479.13x = 104,134.64 × 45,274.23
  4. Step 4: Simplify right side
    75,479.13x = 4,714,615,642.33
  5. Step 5: Solve for x
    x = 4,714,615,642.33/75,479.13
  6. Step 6: Final answer
    x = 62,462.51

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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.