Home / 61,013.12-91,463.63-21,022.58

Finding the Fourth Proportional to 61,013.12, 91,463.63 and 21,022.58

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Solution

The fourth proportional to 61,013.12, 91,463.63 and 21,022.58 is: 31,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,013.12 : 91,463.63 = 21,022.58 : x
  2. Step 2: Convert to fraction form
    61,013.12/91,463.63 = 21,022.58/x
  3. Step 3: Cross multiply
    61,013.12x = 91,463.63 × 21,022.58
  4. Step 4: Simplify right side
    61,013.12x = 1,922,800,916.33
  5. Step 5: Solve for x
    x = 1,922,800,916.33/61,013.12
  6. Step 6: Final answer
    x = 31,514.55

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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.