Home / 57,035.52-85,426.56-43,790.40

Finding the Fourth Proportional to 57,035.52, 85,426.56 and 43,790.40

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Solution

The fourth proportional to 57,035.52, 85,426.56 and 43,790.40 is: 65,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.52 : 85,426.56 = 43,790.40 : x
  2. Step 2: Convert to fraction form
    57,035.52/85,426.56 = 43,790.40/x
  3. Step 3: Cross multiply
    57,035.52x = 85,426.56 × 43,790.40
  4. Step 4: Simplify right side
    57,035.52x = 3,740,863,233.02
  5. Step 5: Solve for x
    x = 3,740,863,233.02/57,035.52
  6. Step 6: Final answer
    x = 65,588.31

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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.