Home / 87,541.37-120,802.13-51,734.72

Finding the Fourth Proportional to 87,541.37, 120,802.13 and 51,734.72

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Solution

The fourth proportional to 87,541.37, 120,802.13 and 51,734.72 is: 71,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,541.37 : 120,802.13 = 51,734.72 : x
  2. Step 2: Convert to fraction form
    87,541.37/120,802.13 = 51,734.72/x
  3. Step 3: Cross multiply
    87,541.37x = 120,802.13 × 51,734.72
  4. Step 4: Simplify right side
    87,541.37x = 6,249,663,766.94
  5. Step 5: Solve for x
    x = 6,249,663,766.94/87,541.37
  6. Step 6: Final answer
    x = 71,390.98

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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.