Home / 51,382.20-77,054.88-21,802.08

Finding the Fourth Proportional to 51,382.20, 77,054.88 and 21,802.08

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Solution

The fourth proportional to 51,382.20, 77,054.88 and 21,802.08 is: 32,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.20 : 77,054.88 = 21,802.08 : x
  2. Step 2: Convert to fraction form
    51,382.20/77,054.88 = 21,802.08/x
  3. Step 3: Cross multiply
    51,382.20x = 77,054.88 × 21,802.08
  4. Step 4: Simplify right side
    51,382.20x = 1,679,956,658.15
  5. Step 5: Solve for x
    x = 1,679,956,658.15/51,382.20
  6. Step 6: Final answer
    x = 32,695.30

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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.