Home / 51,148.40-76,716.36-13,711.28

Finding the Fourth Proportional to 51,148.40, 76,716.36 and 13,711.28

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Solution

The fourth proportional to 51,148.40, 76,716.36 and 13,711.28 is: 20,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,148.40 : 76,716.36 = 13,711.28 : x
  2. Step 2: Convert to fraction form
    51,148.40/76,716.36 = 13,711.28/x
  3. Step 3: Cross multiply
    51,148.40x = 76,716.36 × 13,711.28
  4. Step 4: Simplify right side
    51,148.40x = 1,051,879,492.54
  5. Step 5: Solve for x
    x = 1,051,879,492.54/51,148.40
  6. Step 6: Final answer
    x = 20,565.25

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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.