Home / 87,890.19-121,288.58-47,604.29

Finding the Fourth Proportional to 87,890.19, 121,288.58 and 47,604.29

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Solution

The fourth proportional to 87,890.19, 121,288.58 and 47,604.29 is: 65,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.19 : 121,288.58 = 47,604.29 : x
  2. Step 2: Convert to fraction form
    87,890.19/121,288.58 = 47,604.29/x
  3. Step 3: Cross multiply
    87,890.19x = 121,288.58 × 47,604.29
  4. Step 4: Simplify right side
    87,890.19x = 5,773,856,736.01
  5. Step 5: Solve for x
    x = 5,773,856,736.01/87,890.19
  6. Step 6: Final answer
    x = 65,693.98

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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.