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Finding the Fourth Proportional to 57,172.80, 85,686.30 and 27,526.80

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Solution

The fourth proportional to 57,172.80, 85,686.30 and 27,526.80 is: 41,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,172.80 : 85,686.30 = 27,526.80 : x
  2. Step 2: Convert to fraction form
    57,172.80/85,686.30 = 27,526.80/x
  3. Step 3: Cross multiply
    57,172.80x = 85,686.30 × 27,526.80
  4. Step 4: Simplify right side
    57,172.80x = 2,358,669,642.84
  5. Step 5: Solve for x
    x = 2,358,669,642.84/57,172.80
  6. Step 6: Final answer
    x = 41,255.10

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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.