Home / 52,272.24-78,409.80-12,829.20

Finding the Fourth Proportional to 52,272.24, 78,409.80 and 12,829.20

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Solution

The fourth proportional to 52,272.24, 78,409.80 and 12,829.20 is: 19,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,272.24 : 78,409.80 = 12,829.20 : x
  2. Step 2: Convert to fraction form
    52,272.24/78,409.80 = 12,829.20/x
  3. Step 3: Cross multiply
    52,272.24x = 78,409.80 × 12,829.20
  4. Step 4: Simplify right side
    52,272.24x = 1,005,935,006.16
  5. Step 5: Solve for x
    x = 1,005,935,006.16/52,272.24
  6. Step 6: Final answer
    x = 19,244.15

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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.