Home / 76,233.78-105,204.93-42,239.09

Finding the Fourth Proportional to 76,233.78, 105,204.93 and 42,239.09

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Solution

The fourth proportional to 76,233.78, 105,204.93 and 42,239.09 is: 58,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,233.78 : 105,204.93 = 42,239.09 : x
  2. Step 2: Convert to fraction form
    76,233.78/105,204.93 = 42,239.09/x
  3. Step 3: Cross multiply
    76,233.78x = 105,204.93 × 42,239.09
  4. Step 4: Simplify right side
    76,233.78x = 4,443,760,572.47
  5. Step 5: Solve for x
    x = 4,443,760,572.47/76,233.78
  6. Step 6: Final answer
    x = 58,291.22

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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.