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Finding the Fourth Proportional to 57,015.54, 85,526.82 and 21,955.23

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Solution

The fourth proportional to 57,015.54, 85,526.82 and 21,955.23 is: 32,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.54 : 85,526.82 = 21,955.23 : x
  2. Step 2: Convert to fraction form
    57,015.54/85,526.82 = 21,955.23/x
  3. Step 3: Cross multiply
    57,015.54x = 85,526.82 × 21,955.23
  4. Step 4: Simplify right side
    57,015.54x = 1,877,761,004.27
  5. Step 5: Solve for x
    x = 1,877,761,004.27/57,015.54
  6. Step 6: Final answer
    x = 32,934.20

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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.