Home / 61,145.39-91,718.22-16,772.78

Finding the Fourth Proportional to 61,145.39, 91,718.22 and 16,772.78

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Solution

The fourth proportional to 61,145.39, 91,718.22 and 16,772.78 is: 25,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,145.39 : 91,718.22 = 16,772.78 : x
  2. Step 2: Convert to fraction form
    61,145.39/91,718.22 = 16,772.78/x
  3. Step 3: Cross multiply
    61,145.39x = 91,718.22 × 16,772.78
  4. Step 4: Simplify right side
    61,145.39x = 1,538,369,526.05
  5. Step 5: Solve for x
    x = 1,538,369,526.05/61,145.39
  6. Step 6: Final answer
    x = 25,159.21

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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.