Home / 53,915.40-80,882.82-18,374.76

Finding the Fourth Proportional to 53,915.40, 80,882.82 and 18,374.76

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Solution

The fourth proportional to 53,915.40, 80,882.82 and 18,374.76 is: 27,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.40 : 80,882.82 = 18,374.76 : x
  2. Step 2: Convert to fraction form
    53,915.40/80,882.82 = 18,374.76/x
  3. Step 3: Cross multiply
    53,915.40x = 80,882.82 × 18,374.76
  4. Step 4: Simplify right side
    53,915.40x = 1,486,202,405.62
  5. Step 5: Solve for x
    x = 1,486,202,405.62/53,915.40
  6. Step 6: Final answer
    x = 27,565.45

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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.