Home / 74,079.64-102,284.85-45,438.82

Finding the Fourth Proportional to 74,079.64, 102,284.85 and 45,438.82

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Solution

The fourth proportional to 74,079.64, 102,284.85 and 45,438.82 is: 62,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,079.64 : 102,284.85 = 45,438.82 : x
  2. Step 2: Convert to fraction form
    74,079.64/102,284.85 = 45,438.82/x
  3. Step 3: Cross multiply
    74,079.64x = 102,284.85 × 45,438.82
  4. Step 4: Simplify right side
    74,079.64x = 4,647,702,887.88
  5. Step 5: Solve for x
    x = 4,647,702,887.88/74,079.64
  6. Step 6: Final answer
    x = 62,739.27

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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.