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Finding the Fourth Proportional to 74,339.52, 102,563.34 and 42,485.70

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Solution

The fourth proportional to 74,339.52, 102,563.34 and 42,485.70 is: 58,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,339.52 : 102,563.34 = 42,485.70 : x
  2. Step 2: Convert to fraction form
    74,339.52/102,563.34 = 42,485.70/x
  3. Step 3: Cross multiply
    74,339.52x = 102,563.34 × 42,485.70
  4. Step 4: Simplify right side
    74,339.52x = 4,357,475,294.24
  5. Step 5: Solve for x
    x = 4,357,475,294.24/74,339.52
  6. Step 6: Final answer
    x = 58,615.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.