Home / 74,938.44-103,391.76-42,670.68

Finding the Fourth Proportional to 74,938.44, 103,391.76 and 42,670.68

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Solution

The fourth proportional to 74,938.44, 103,391.76 and 42,670.68 is: 58,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,938.44 : 103,391.76 = 42,670.68 : x
  2. Step 2: Convert to fraction form
    74,938.44/103,391.76 = 42,670.68/x
  3. Step 3: Cross multiply
    74,938.44x = 103,391.76 × 42,670.68
  4. Step 4: Simplify right side
    74,938.44x = 4,411,796,705.60
  5. Step 5: Solve for x
    x = 4,411,796,705.60/74,938.44
  6. Step 6: Final answer
    x = 58,872.28

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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.