Home / 78,746.24-108,669.12-45,212.48

Finding the Fourth Proportional to 78,746.24, 108,669.12 and 45,212.48

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Solution

The fourth proportional to 78,746.24, 108,669.12 and 45,212.48 is: 62,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,746.24 : 108,669.12 = 45,212.48 : x
  2. Step 2: Convert to fraction form
    78,746.24/108,669.12 = 45,212.48/x
  3. Step 3: Cross multiply
    78,746.24x = 108,669.12 × 45,212.48
  4. Step 4: Simplify right side
    78,746.24x = 4,913,200,414.62
  5. Step 5: Solve for x
    x = 4,913,200,414.62/78,746.24
  6. Step 6: Final answer
    x = 62,392.83

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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.