Home / 51,141.60-76,711.68-14,205.60

Finding the Fourth Proportional to 51,141.60, 76,711.68 and 14,205.60

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Solution

The fourth proportional to 51,141.60, 76,711.68 and 14,205.60 is: 21,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,141.60 : 76,711.68 = 14,205.60 : x
  2. Step 2: Convert to fraction form
    51,141.60/76,711.68 = 14,205.60/x
  3. Step 3: Cross multiply
    51,141.60x = 76,711.68 × 14,205.60
  4. Step 4: Simplify right side
    51,141.60x = 1,089,735,441.41
  5. Step 5: Solve for x
    x = 1,089,735,441.41/51,141.60
  6. Step 6: Final answer
    x = 21,308.20

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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.