Home / 51,019.30-76,565.40-21,458.35

Finding the Fourth Proportional to 51,019.30, 76,565.40 and 21,458.35

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Solution

The fourth proportional to 51,019.30, 76,565.40 and 21,458.35 is: 32,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.30 : 76,565.40 = 21,458.35 : x
  2. Step 2: Convert to fraction form
    51,019.30/76,565.40 = 21,458.35/x
  3. Step 3: Cross multiply
    51,019.30x = 76,565.40 × 21,458.35
  4. Step 4: Simplify right side
    51,019.30x = 1,642,967,151.09
  5. Step 5: Solve for x
    x = 1,642,967,151.09/51,019.30
  6. Step 6: Final answer
    x = 32,202.86

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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.