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Finding the Fourth Proportional to 57,033.15, 85,489.25 and 21,957.63

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Solution

The fourth proportional to 57,033.15, 85,489.25 and 21,957.63 is: 32,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,033.15 : 85,489.25 = 21,957.63 : x
  2. Step 2: Convert to fraction form
    57,033.15/85,489.25 = 21,957.63/x
  3. Step 3: Cross multiply
    57,033.15x = 85,489.25 × 21,957.63
  4. Step 4: Simplify right side
    57,033.15x = 1,877,141,210.69
  5. Step 5: Solve for x
    x = 1,877,141,210.69/57,033.15
  6. Step 6: Final answer
    x = 32,913.16

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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.