Home / 74,845.12-103,262.16-49,699.60

Finding the Fourth Proportional to 74,845.12, 103,262.16 and 49,699.60

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Solution

The fourth proportional to 74,845.12, 103,262.16 and 49,699.60 is: 68,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,845.12 : 103,262.16 = 49,699.60 : x
  2. Step 2: Convert to fraction form
    74,845.12/103,262.16 = 49,699.60/x
  3. Step 3: Cross multiply
    74,845.12x = 103,262.16 × 49,699.60
  4. Step 4: Simplify right side
    74,845.12x = 5,132,088,047.14
  5. Step 5: Solve for x
    x = 5,132,088,047.14/74,845.12
  6. Step 6: Final answer
    x = 68,569.44

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1.5x scale

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.