Home / 51,366.39-77,055.74-21,780.38

Finding the Fourth Proportional to 51,366.39, 77,055.74 and 21,780.38

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Solution

The fourth proportional to 51,366.39, 77,055.74 and 21,780.38 is: 32,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,366.39 : 77,055.74 = 21,780.38 : x
  2. Step 2: Convert to fraction form
    51,366.39/77,055.74 = 21,780.38/x
  3. Step 3: Cross multiply
    51,366.39x = 77,055.74 × 21,780.38
  4. Step 4: Simplify right side
    51,366.39x = 1,678,302,804.20
  5. Step 5: Solve for x
    x = 1,678,302,804.20/51,366.39
  6. Step 6: Final answer
    x = 32,673.17

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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.