Home / 45,890.99-68,823.87-12,603.15

Finding the Fourth Proportional to 45,890.99, 68,823.87 and 12,603.15

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Solution

The fourth proportional to 45,890.99, 68,823.87 and 12,603.15 is: 18,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,890.99 : 68,823.87 = 12,603.15 : x
  2. Step 2: Convert to fraction form
    45,890.99/68,823.87 = 12,603.15/x
  3. Step 3: Cross multiply
    45,890.99x = 68,823.87 × 12,603.15
  4. Step 4: Simplify right side
    45,890.99x = 867,397,557.19
  5. Step 5: Solve for x
    x = 867,397,557.19/45,890.99
  6. Step 6: Final answer
    x = 18,901.26

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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.