Home / 68,152.08-102,320.31-47,039.64

Finding the Fourth Proportional to 68,152.08, 102,320.31 and 47,039.64

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Solution

The fourth proportional to 68,152.08, 102,320.31 and 47,039.64 is: 70,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,152.08 : 102,320.31 = 47,039.64 : x
  2. Step 2: Convert to fraction form
    68,152.08/102,320.31 = 47,039.64/x
  3. Step 3: Cross multiply
    68,152.08x = 102,320.31 × 47,039.64
  4. Step 4: Simplify right side
    68,152.08x = 4,813,110,339.79
  5. Step 5: Solve for x
    x = 4,813,110,339.79/68,152.08
  6. Step 6: Final answer
    x = 70,623.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.