Home / 75,825.86-104,655.65-51,983.91

Finding the Fourth Proportional to 75,825.86, 104,655.65 and 51,983.91

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Solution

The fourth proportional to 75,825.86, 104,655.65 and 51,983.91 is: 71,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,825.86 : 104,655.65 = 51,983.91 : x
  2. Step 2: Convert to fraction form
    75,825.86/104,655.65 = 51,983.91/x
  3. Step 3: Cross multiply
    75,825.86x = 104,655.65 × 51,983.91
  4. Step 4: Simplify right side
    75,825.86x = 5,440,409,630.67
  5. Step 5: Solve for x
    x = 5,440,409,630.67/75,825.86
  6. Step 6: Final answer
    x = 71,748.74

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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.