Home / 53,865.44-80,780.72-19,666.40

Finding the Fourth Proportional to 53,865.44, 80,780.72 and 19,666.40

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Solution

The fourth proportional to 53,865.44, 80,780.72 and 19,666.40 is: 29,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865.44 : 80,780.72 = 19,666.40 : x
  2. Step 2: Convert to fraction form
    53,865.44/80,780.72 = 19,666.40/x
  3. Step 3: Cross multiply
    53,865.44x = 80,780.72 × 19,666.40
  4. Step 4: Simplify right side
    53,865.44x = 1,588,665,951.81
  5. Step 5: Solve for x
    x = 1,588,665,951.81/53,865.44
  6. Step 6: Final answer
    x = 29,493.23

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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.