Home / 74,962.70-103,448.28-40,971.19

Finding the Fourth Proportional to 74,962.70, 103,448.28 and 40,971.19

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Solution

The fourth proportional to 74,962.70, 103,448.28 and 40,971.19 is: 56,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.70 : 103,448.28 = 40,971.19 : x
  2. Step 2: Convert to fraction form
    74,962.70/103,448.28 = 40,971.19/x
  3. Step 3: Cross multiply
    74,962.70x = 103,448.28 × 40,971.19
  4. Step 4: Simplify right side
    74,962.70x = 4,238,398,617.81
  5. Step 5: Solve for x
    x = 4,238,398,617.81/74,962.70
  6. Step 6: Final answer
    x = 56,540.10

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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.