Home / 74,438.45-102,729.66-42,606.62

Finding the Fourth Proportional to 74,438.45, 102,729.66 and 42,606.62

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Solution

The fourth proportional to 74,438.45, 102,729.66 and 42,606.62 is: 58,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,438.45 : 102,729.66 = 42,606.62 : x
  2. Step 2: Convert to fraction form
    74,438.45/102,729.66 = 42,606.62/x
  3. Step 3: Cross multiply
    74,438.45x = 102,729.66 × 42,606.62
  4. Step 4: Simplify right side
    74,438.45x = 4,376,963,586.35
  5. Step 5: Solve for x
    x = 4,376,963,586.35/74,438.45
  6. Step 6: Final answer
    x = 58,799.77

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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.