Home / 53,964.72-80,947.08-18,914.40

Finding the Fourth Proportional to 53,964.72, 80,947.08 and 18,914.40

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Solution

The fourth proportional to 53,964.72, 80,947.08 and 18,914.40 is: 28,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,964.72 : 80,947.08 = 18,914.40 : x
  2. Step 2: Convert to fraction form
    53,964.72/80,947.08 = 18,914.40/x
  3. Step 3: Cross multiply
    53,964.72x = 80,947.08 × 18,914.40
  4. Step 4: Simplify right side
    53,964.72x = 1,531,065,449.95
  5. Step 5: Solve for x
    x = 1,531,065,449.95/53,964.72
  6. Step 6: Final answer
    x = 28,371.60

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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.