Home / 68,400.76-94,432.32-52,140.42

Finding the Fourth Proportional to 68,400.76, 94,432.32 and 52,140.42

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Solution

The fourth proportional to 68,400.76, 94,432.32 and 52,140.42 is: 71,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,400.76 : 94,432.32 = 52,140.42 : x
  2. Step 2: Convert to fraction form
    68,400.76/94,432.32 = 52,140.42/x
  3. Step 3: Cross multiply
    68,400.76x = 94,432.32 × 52,140.42
  4. Step 4: Simplify right side
    68,400.76x = 4,923,740,826.37
  5. Step 5: Solve for x
    x = 4,923,740,826.37/68,400.76
  6. Step 6: Final answer
    x = 71,983.72

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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.