Home / 52,191.36-78,300-15,255.36

Finding the Fourth Proportional to 52,191.36, 78,300 and 15,255.36

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Solution

The fourth proportional to 52,191.36, 78,300 and 15,255.36 is: 22,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,191.36 : 78,300 = 15,255.36 : x
  2. Step 2: Convert to fraction form
    52,191.36/78,300 = 15,255.36/x
  3. Step 3: Cross multiply
    52,191.36x = 78,300 × 15,255.36
  4. Step 4: Simplify right side
    52,191.36x = 1,194,494,688
  5. Step 5: Solve for x
    x = 1,194,494,688/52,191.36
  6. Step 6: Final answer
    x = 22,886.83

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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.