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Finding the Fourth Proportional to 57,352.95, 86,041.37 and 28,905.89

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Solution

The fourth proportional to 57,352.95, 86,041.37 and 28,905.89 is: 43,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,352.95 : 86,041.37 = 28,905.89 : x
  2. Step 2: Convert to fraction form
    57,352.95/86,041.37 = 28,905.89/x
  3. Step 3: Cross multiply
    57,352.95x = 86,041.37 × 28,905.89
  4. Step 4: Simplify right side
    57,352.95x = 2,487,101,801.93
  5. Step 5: Solve for x
    x = 2,487,101,801.93/57,352.95
  6. Step 6: Final answer
    x = 43,364.85

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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.