Home / 45,420.07-68,132.53-14,257.75

Finding the Fourth Proportional to 45,420.07, 68,132.53 and 14,257.75

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Solution

The fourth proportional to 45,420.07, 68,132.53 and 14,257.75 is: 21,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.07 : 68,132.53 = 14,257.75 : x
  2. Step 2: Convert to fraction form
    45,420.07/68,132.53 = 14,257.75/x
  3. Step 3: Cross multiply
    45,420.07x = 68,132.53 × 14,257.75
  4. Step 4: Simplify right side
    45,420.07x = 971,416,167.66
  5. Step 5: Solve for x
    x = 971,416,167.66/45,420.07
  6. Step 6: Final answer
    x = 21,387.38

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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.