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Finding the Fourth Proportional to 74,328.12, 102,569.22 and 42,500.52

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Solution

The fourth proportional to 74,328.12, 102,569.22 and 42,500.52 is: 58,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.12 : 102,569.22 = 42,500.52 : x
  2. Step 2: Convert to fraction form
    74,328.12/102,569.22 = 42,500.52/x
  3. Step 3: Cross multiply
    74,328.12x = 102,569.22 × 42,500.52
  4. Step 4: Simplify right side
    74,328.12x = 4,359,245,185.99
  5. Step 5: Solve for x
    x = 4,359,245,185.99/74,328.12
  6. Step 6: Final answer
    x = 58,648.67

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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.