Home / 87,841.45-121,219.75-47,554.86

Finding the Fourth Proportional to 87,841.45, 121,219.75 and 47,554.86

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Solution

The fourth proportional to 87,841.45, 121,219.75 and 47,554.86 is: 65,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,841.45 : 121,219.75 = 47,554.86 : x
  2. Step 2: Convert to fraction form
    87,841.45/121,219.75 = 47,554.86/x
  3. Step 3: Cross multiply
    87,841.45x = 121,219.75 × 47,554.86
  4. Step 4: Simplify right side
    87,841.45x = 5,764,588,240.49
  5. Step 5: Solve for x
    x = 5,764,588,240.49/87,841.45
  6. Step 6: Final answer
    x = 65,624.92

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1.5x scale

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.