Home / 61,143.42-91,715.25-16,770.78

Finding the Fourth Proportional to 61,143.42, 91,715.25 and 16,770.78

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Solution

The fourth proportional to 61,143.42, 91,715.25 and 16,770.78 is: 25,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.42 : 91,715.25 = 16,770.78 : x
  2. Step 2: Convert to fraction form
    61,143.42/91,715.25 = 16,770.78/x
  3. Step 3: Cross multiply
    61,143.42x = 91,715.25 × 16,770.78
  4. Step 4: Simplify right side
    61,143.42x = 1,538,136,280.40
  5. Step 5: Solve for x
    x = 1,538,136,280.40/61,143.42
  6. Step 6: Final answer
    x = 25,156.20

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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.