Home / 87,916.08-121,324.04-47,630.87

Finding the Fourth Proportional to 87,916.08, 121,324.04 and 47,630.87

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Solution

The fourth proportional to 87,916.08, 121,324.04 and 47,630.87 is: 65,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916.08 : 121,324.04 = 47,630.87 : x
  2. Step 2: Convert to fraction form
    87,916.08/121,324.04 = 47,630.87/x
  3. Step 3: Cross multiply
    87,916.08x = 121,324.04 × 47,630.87
  4. Step 4: Simplify right side
    87,916.08x = 5,778,768,732.34
  5. Step 5: Solve for x
    x = 5,778,768,732.34/87,916.08
  6. Step 6: Final answer
    x = 65,730.51

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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.