Home / 74,866.06-103,316.16-40,874.16

Finding the Fourth Proportional to 74,866.06, 103,316.16 and 40,874.16

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Solution

The fourth proportional to 74,866.06, 103,316.16 and 40,874.16 is: 56,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.06 : 103,316.16 = 40,874.16 : x
  2. Step 2: Convert to fraction form
    74,866.06/103,316.16 = 40,874.16/x
  3. Step 3: Cross multiply
    74,866.06x = 103,316.16 × 40,874.16
  4. Step 4: Simplify right side
    74,866.06x = 4,222,961,254.43
  5. Step 5: Solve for x
    x = 4,222,961,254.43/74,866.06
  6. Step 6: Final answer
    x = 56,406.89

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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.