Home / 45,281.28-67,917.60-14,116.80

Finding the Fourth Proportional to 45,281.28, 67,917.60 and 14,116.80

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Solution

The fourth proportional to 45,281.28, 67,917.60 and 14,116.80 is: 21,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,281.28 : 67,917.60 = 14,116.80 : x
  2. Step 2: Convert to fraction form
    45,281.28/67,917.60 = 14,116.80/x
  3. Step 3: Cross multiply
    45,281.28x = 67,917.60 × 14,116.80
  4. Step 4: Simplify right side
    45,281.28x = 958,779,175.68
  5. Step 5: Solve for x
    x = 958,779,175.68/45,281.28
  6. Step 6: Final answer
    x = 21,173.85

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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.