Home / 55,476.09-76,479.59-38,451.11

Finding the Fourth Proportional to 55,476.09, 76,479.59 and 38,451.11

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Solution

The fourth proportional to 55,476.09, 76,479.59 and 38,451.11 is: 53,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,476.09 : 76,479.59 = 38,451.11 : x
  2. Step 2: Convert to fraction form
    55,476.09/76,479.59 = 38,451.11/x
  3. Step 3: Cross multiply
    55,476.09x = 76,479.59 × 38,451.11
  4. Step 4: Simplify right side
    55,476.09x = 2,940,724,841.57
  5. Step 5: Solve for x
    x = 2,940,724,841.57/55,476.09
  6. Step 6: Final answer
    x = 53,008.87

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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.