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Finding the Fourth Proportional to 101,074.80, 139,510.98 and 58,647

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Solution

The fourth proportional to 101,074.80, 139,510.98 and 58,647 is: 80,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,074.80 : 139,510.98 = 58,647 : x
  2. Step 2: Convert to fraction form
    101,074.80/139,510.98 = 58,647/x
  3. Step 3: Cross multiply
    101,074.80x = 139,510.98 × 58,647
  4. Step 4: Simplify right side
    101,074.80x = 8,181,900,444.06
  5. Step 5: Solve for x
    x = 8,181,900,444.06/101,074.80
  6. Step 6: Final answer
    x = 80,948.96

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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.