Home / 51,880.96-77,830.56-21,485.76

Finding the Fourth Proportional to 51,880.96, 77,830.56 and 21,485.76

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Solution

The fourth proportional to 51,880.96, 77,830.56 and 21,485.76 is: 32,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,880.96 : 77,830.56 = 21,485.76 : x
  2. Step 2: Convert to fraction form
    51,880.96/77,830.56 = 21,485.76/x
  3. Step 3: Cross multiply
    51,880.96x = 77,830.56 × 21,485.76
  4. Step 4: Simplify right side
    51,880.96x = 1,672,248,732.83
  5. Step 5: Solve for x
    x = 1,672,248,732.83/51,880.96
  6. Step 6: Final answer
    x = 32,232.42

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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.