Home / 52,696.17-79,012.40-20,636.98

Finding the Fourth Proportional to 52,696.17, 79,012.40 and 20,636.98

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Solution

The fourth proportional to 52,696.17, 79,012.40 and 20,636.98 is: 30,942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,696.17 : 79,012.40 = 20,636.98 : x
  2. Step 2: Convert to fraction form
    52,696.17/79,012.40 = 20,636.98/x
  3. Step 3: Cross multiply
    52,696.17x = 79,012.40 × 20,636.98
  4. Step 4: Simplify right side
    52,696.17x = 1,630,577,017.84
  5. Step 5: Solve for x
    x = 1,630,577,017.84/52,696.17
  6. Step 6: Final answer
    x = 30,942.99

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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.