Home / 45,113.15-67,680.45-13,525.85

Finding the Fourth Proportional to 45,113.15, 67,680.45 and 13,525.85

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Solution

The fourth proportional to 45,113.15, 67,680.45 and 13,525.85 is: 20,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,113.15 : 67,680.45 = 13,525.85 : x
  2. Step 2: Convert to fraction form
    45,113.15/67,680.45 = 13,525.85/x
  3. Step 3: Cross multiply
    45,113.15x = 67,680.45 × 13,525.85
  4. Step 4: Simplify right side
    45,113.15x = 915,435,276.23
  5. Step 5: Solve for x
    x = 915,435,276.23/45,113.15
  6. Step 6: Final answer
    x = 20,291.99

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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.