Home / 53,780.16-80,670.40-18,711.44

Finding the Fourth Proportional to 53,780.16, 80,670.40 and 18,711.44

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Solution

The fourth proportional to 53,780.16, 80,670.40 and 18,711.44 is: 28,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,780.16 : 80,670.40 = 18,711.44 : x
  2. Step 2: Convert to fraction form
    53,780.16/80,670.40 = 18,711.44/x
  3. Step 3: Cross multiply
    53,780.16x = 80,670.40 × 18,711.44
  4. Step 4: Simplify right side
    53,780.16x = 1,509,459,349.38
  5. Step 5: Solve for x
    x = 1,509,459,349.38/53,780.16
  6. Step 6: Final answer
    x = 28,067.22

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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.