Home / 76,207.05-105,164.59-42,215.43

Finding the Fourth Proportional to 76,207.05, 105,164.59 and 42,215.43

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Solution

The fourth proportional to 76,207.05, 105,164.59 and 42,215.43 is: 58,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,207.05 : 105,164.59 = 42,215.43 : x
  2. Step 2: Convert to fraction form
    76,207.05/105,164.59 = 42,215.43/x
  3. Step 3: Cross multiply
    76,207.05x = 105,164.59 × 42,215.43
  4. Step 4: Simplify right side
    76,207.05x = 4,439,568,387.62
  5. Step 5: Solve for x
    x = 4,439,568,387.62/76,207.05
  6. Step 6: Final answer
    x = 58,256.66

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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.