Home / 74,418.94-102,699.75-40,887.10

Finding the Fourth Proportional to 74,418.94, 102,699.75 and 40,887.10

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Solution

The fourth proportional to 74,418.94, 102,699.75 and 40,887.10 is: 56,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.94 : 102,699.75 = 40,887.10 : x
  2. Step 2: Convert to fraction form
    74,418.94/102,699.75 = 40,887.10/x
  3. Step 3: Cross multiply
    74,418.94x = 102,699.75 × 40,887.10
  4. Step 4: Simplify right side
    74,418.94x = 4,199,094,948.23
  5. Step 5: Solve for x
    x = 4,199,094,948.23/74,418.94
  6. Step 6: Final answer
    x = 56,425.08

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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.