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Finding the Fourth Proportional to 70,644.96, 97,506.79 and 40,447.65

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Solution

The fourth proportional to 70,644.96, 97,506.79 and 40,447.65 is: 55,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,644.96 : 97,506.79 = 40,447.65 : x
  2. Step 2: Convert to fraction form
    70,644.96/97,506.79 = 40,447.65/x
  3. Step 3: Cross multiply
    70,644.96x = 97,506.79 × 40,447.65
  4. Step 4: Simplify right side
    70,644.96x = 3,943,920,779.07
  5. Step 5: Solve for x
    x = 3,943,920,779.07/70,644.96
  6. Step 6: Final answer
    x = 55,827.35

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Why These Related Problems?

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