Home / 45,715.92-68,603.10-19,420.65

Finding the Fourth Proportional to 45,715.92, 68,603.10 and 19,420.65

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Solution

The fourth proportional to 45,715.92, 68,603.10 and 19,420.65 is: 29,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,715.92 : 68,603.10 = 19,420.65 : x
  2. Step 2: Convert to fraction form
    45,715.92/68,603.10 = 19,420.65/x
  3. Step 3: Cross multiply
    45,715.92x = 68,603.10 × 19,420.65
  4. Step 4: Simplify right side
    45,715.92x = 1,332,316,794.02
  5. Step 5: Solve for x
    x = 1,332,316,794.02/45,715.92
  6. Step 6: Final answer
    x = 29,143.39

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1.5x scale

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.