Home / 74,445.21-102,744.65-45,782.96

Finding the Fourth Proportional to 74,445.21, 102,744.65 and 45,782.96

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Solution

The fourth proportional to 74,445.21, 102,744.65 and 45,782.96 is: 63,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445.21 : 102,744.65 = 45,782.96 : x
  2. Step 2: Convert to fraction form
    74,445.21/102,744.65 = 45,782.96/x
  3. Step 3: Cross multiply
    74,445.21x = 102,744.65 × 45,782.96
  4. Step 4: Simplify right side
    74,445.21x = 4,703,953,801.90
  5. Step 5: Solve for x
    x = 4,703,953,801.90/74,445.21
  6. Step 6: Final answer
    x = 63,186.79

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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.