Home / 45,307.24-67,940.40-13,705.12

Finding the Fourth Proportional to 45,307.24, 67,940.40 and 13,705.12

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Solution

The fourth proportional to 45,307.24, 67,940.40 and 13,705.12 is: 20,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,307.24 : 67,940.40 = 13,705.12 : x
  2. Step 2: Convert to fraction form
    45,307.24/67,940.40 = 13,705.12/x
  3. Step 3: Cross multiply
    45,307.24x = 67,940.40 × 13,705.12
  4. Step 4: Simplify right side
    45,307.24x = 931,131,334.85
  5. Step 5: Solve for x
    x = 931,131,334.85/45,307.24
  6. Step 6: Final answer
    x = 20,551.49

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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.