Home / 52,261.52-78,393.74-12,818.57

Finding the Fourth Proportional to 52,261.52, 78,393.74 and 12,818.57

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Solution

The fourth proportional to 52,261.52, 78,393.74 and 12,818.57 is: 19,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.52 : 78,393.74 = 12,818.57 : x
  2. Step 2: Convert to fraction form
    52,261.52/78,393.74 = 12,818.57/x
  3. Step 3: Cross multiply
    52,261.52x = 78,393.74 × 12,818.57
  4. Step 4: Simplify right side
    52,261.52x = 1,004,895,187.69
  5. Step 5: Solve for x
    x = 1,004,895,187.69/52,261.52
  6. Step 6: Final answer
    x = 19,228.21

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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.