Home / 74,971.53-103,460.63-40,980.24

Finding the Fourth Proportional to 74,971.53, 103,460.63 and 40,980.24

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Solution

The fourth proportional to 74,971.53, 103,460.63 and 40,980.24 is: 56,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,971.53 : 103,460.63 = 40,980.24 : x
  2. Step 2: Convert to fraction form
    74,971.53/103,460.63 = 40,980.24/x
  3. Step 3: Cross multiply
    74,971.53x = 103,460.63 × 40,980.24
  4. Step 4: Simplify right side
    74,971.53x = 4,239,841,243.05
  5. Step 5: Solve for x
    x = 4,239,841,243.05/74,971.53
  6. Step 6: Final answer
    x = 56,552.68

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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.