Home / 74,431.74-102,732.05-45,776.06

Finding the Fourth Proportional to 74,431.74, 102,732.05 and 45,776.06

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Solution

The fourth proportional to 74,431.74, 102,732.05 and 45,776.06 is: 63,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.74 : 102,732.05 = 45,776.06 : x
  2. Step 2: Convert to fraction form
    74,431.74/102,732.05 = 45,776.06/x
  3. Step 3: Cross multiply
    74,431.74x = 102,732.05 × 45,776.06
  4. Step 4: Simplify right side
    74,431.74x = 4,702,668,484.72
  5. Step 5: Solve for x
    x = 4,702,668,484.72/74,431.74
  6. Step 6: Final answer
    x = 63,180.96

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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.