Home / 74,029.48-102,162.18-40,497.64

Finding the Fourth Proportional to 74,029.48, 102,162.18 and 40,497.64

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Solution

The fourth proportional to 74,029.48, 102,162.18 and 40,497.64 is: 55,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,029.48 : 102,162.18 = 40,497.64 : x
  2. Step 2: Convert to fraction form
    74,029.48/102,162.18 = 40,497.64/x
  3. Step 3: Cross multiply
    74,029.48x = 102,162.18 × 40,497.64
  4. Step 4: Simplify right side
    74,029.48x = 4,137,327,187.26
  5. Step 5: Solve for x
    x = 4,137,327,187.26/74,029.48
  6. Step 6: Final answer
    x = 55,887.56

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1.5x scale

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.