Home / 87,941.55-121,359.84-47,655.36

Finding the Fourth Proportional to 87,941.55, 121,359.84 and 47,655.36

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Solution

The fourth proportional to 87,941.55, 121,359.84 and 47,655.36 is: 65,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.55 : 121,359.84 = 47,655.36 : x
  2. Step 2: Convert to fraction form
    87,941.55/121,359.84 = 47,655.36/x
  3. Step 3: Cross multiply
    87,941.55x = 121,359.84 × 47,655.36
  4. Step 4: Simplify right side
    87,941.55x = 5,783,446,864.74
  5. Step 5: Solve for x
    x = 5,783,446,864.74/87,941.55
  6. Step 6: Final answer
    x = 65,764.67

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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.