Home / 74,887.88-103,345.46-40,896.64

Finding the Fourth Proportional to 74,887.88, 103,345.46 and 40,896.64

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Solution

The fourth proportional to 74,887.88, 103,345.46 and 40,896.64 is: 56,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887.88 : 103,345.46 = 40,896.64 : x
  2. Step 2: Convert to fraction form
    74,887.88/103,345.46 = 40,896.64/x
  3. Step 3: Cross multiply
    74,887.88x = 103,345.46 × 40,896.64
  4. Step 4: Simplify right side
    74,887.88x = 4,226,482,073.25
  5. Step 5: Solve for x
    x = 4,226,482,073.25/74,887.88
  6. Step 6: Final answer
    x = 56,437.46

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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.