Home / 45,289.60-67,937.40-12,009.20

Finding the Fourth Proportional to 45,289.60, 67,937.40 and 12,009.20

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Solution

The fourth proportional to 45,289.60, 67,937.40 and 12,009.20 is: 18,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,289.60 : 67,937.40 = 12,009.20 : x
  2. Step 2: Convert to fraction form
    45,289.60/67,937.40 = 12,009.20/x
  3. Step 3: Cross multiply
    45,289.60x = 67,937.40 × 12,009.20
  4. Step 4: Simplify right side
    45,289.60x = 815,873,824.08
  5. Step 5: Solve for x
    x = 815,873,824.08/45,289.60
  6. Step 6: Final answer
    x = 18,014.60

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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.