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Finding the Fourth Proportional to 70,641.48, 97,485.68 and 38,809.56

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Solution

The fourth proportional to 70,641.48, 97,485.68 and 38,809.56 is: 53,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.48 : 97,485.68 = 38,809.56 : x
  2. Step 2: Convert to fraction form
    70,641.48/97,485.68 = 38,809.56/x
  3. Step 3: Cross multiply
    70,641.48x = 97,485.68 × 38,809.56
  4. Step 4: Simplify right side
    70,641.48x = 3,783,376,347.10
  5. Step 5: Solve for x
    x = 3,783,376,347.10/70,641.48
  6. Step 6: Final answer
    x = 53,557.43

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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.