Home / 52,033.38-78,061-20,868.63

Finding the Fourth Proportional to 52,033.38, 78,061 and 20,868.63

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Solution

The fourth proportional to 52,033.38, 78,061 and 20,868.63 is: 31,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,033.38 : 78,061 = 20,868.63 : x
  2. Step 2: Convert to fraction form
    52,033.38/78,061 = 20,868.63/x
  3. Step 3: Cross multiply
    52,033.38x = 78,061 × 20,868.63
  4. Step 4: Simplify right side
    52,033.38x = 1,629,026,126.43
  5. Step 5: Solve for x
    x = 1,629,026,126.43/52,033.38
  6. Step 6: Final answer
    x = 31,307.33

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1.5x scale

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.