Home / 78,527.43-117,723.11-31,749.93

Finding the Fourth Proportional to 78,527.43, 117,723.11 and 31,749.93

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Solution

The fourth proportional to 78,527.43, 117,723.11 and 31,749.93 is: 47,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,527.43 : 117,723.11 = 31,749.93 : x
  2. Step 2: Convert to fraction form
    78,527.43/117,723.11 = 31,749.93/x
  3. Step 3: Cross multiply
    78,527.43x = 117,723.11 × 31,749.93
  4. Step 4: Simplify right side
    78,527.43x = 3,737,700,343.13
  5. Step 5: Solve for x
    x = 3,737,700,343.13/78,527.43
  6. Step 6: Final answer
    x = 47,597.39

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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.