Home / 45,356.91-68,043.57-18,688.08

Finding the Fourth Proportional to 45,356.91, 68,043.57 and 18,688.08

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Solution

The fourth proportional to 45,356.91, 68,043.57 and 18,688.08 is: 28,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.91 : 68,043.57 = 18,688.08 : x
  2. Step 2: Convert to fraction form
    45,356.91/68,043.57 = 18,688.08/x
  3. Step 3: Cross multiply
    45,356.91x = 68,043.57 × 18,688.08
  4. Step 4: Simplify right side
    45,356.91x = 1,271,603,679.65
  5. Step 5: Solve for x
    x = 1,271,603,679.65/45,356.91
  6. Step 6: Final answer
    x = 28,035.50

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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.