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Finding the Fourth Proportional to 70,589.85, 97,415.56 and 38,758.87

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Solution

The fourth proportional to 70,589.85, 97,415.56 and 38,758.87 is: 53,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589.85 : 97,415.56 = 38,758.87 : x
  2. Step 2: Convert to fraction form
    70,589.85/97,415.56 = 38,758.87/x
  3. Step 3: Cross multiply
    70,589.85x = 97,415.56 × 38,758.87
  4. Step 4: Simplify right side
    70,589.85x = 3,775,717,026.02
  5. Step 5: Solve for x
    x = 3,775,717,026.02/70,589.85
  6. Step 6: Final answer
    x = 53,488.10

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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.