Home / 76,021.54-104,909.16-42,031.50

Finding the Fourth Proportional to 76,021.54, 104,909.16 and 42,031.50

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Solution

The fourth proportional to 76,021.54, 104,909.16 and 42,031.50 is: 58,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,021.54 : 104,909.16 = 42,031.50 : x
  2. Step 2: Convert to fraction form
    76,021.54/104,909.16 = 42,031.50/x
  3. Step 3: Cross multiply
    76,021.54x = 104,909.16 × 42,031.50
  4. Step 4: Simplify right side
    76,021.54x = 4,409,489,358.54
  5. Step 5: Solve for x
    x = 4,409,489,358.54/76,021.54
  6. Step 6: Final answer
    x = 58,003.16

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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.