Home / 76,008.81-113,988.45-31,623.66

Finding the Fourth Proportional to 76,008.81, 113,988.45 and 31,623.66

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Solution

The fourth proportional to 76,008.81, 113,988.45 and 31,623.66 is: 47,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,008.81 : 113,988.45 = 31,623.66 : x
  2. Step 2: Convert to fraction form
    76,008.81/113,988.45 = 31,623.66/x
  3. Step 3: Cross multiply
    76,008.81x = 113,988.45 × 31,623.66
  4. Step 4: Simplify right side
    76,008.81x = 3,604,731,986.73
  5. Step 5: Solve for x
    x = 3,604,731,986.73/76,008.81
  6. Step 6: Final answer
    x = 47,425.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.