Home / 57,302.40-85,953.60-54,021.90

Finding the Fourth Proportional to 57,302.40, 85,953.60 and 54,021.90

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Solution

The fourth proportional to 57,302.40, 85,953.60 and 54,021.90 is: 81,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,302.40 : 85,953.60 = 54,021.90 : x
  2. Step 2: Convert to fraction form
    57,302.40/85,953.60 = 54,021.90/x
  3. Step 3: Cross multiply
    57,302.40x = 85,953.60 × 54,021.90
  4. Step 4: Simplify right side
    57,302.40x = 4,643,376,783.84
  5. Step 5: Solve for x
    x = 4,643,376,783.84/57,302.40
  6. Step 6: Final answer
    x = 81,032.85

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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.