Home / 74,489.40-102,778.20-46,181.52

Finding the Fourth Proportional to 74,489.40, 102,778.20 and 46,181.52

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Solution

The fourth proportional to 74,489.40, 102,778.20 and 46,181.52 is: 63,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,489.40 : 102,778.20 = 46,181.52 : x
  2. Step 2: Convert to fraction form
    74,489.40/102,778.20 = 46,181.52/x
  3. Step 3: Cross multiply
    74,489.40x = 102,778.20 × 46,181.52
  4. Step 4: Simplify right side
    74,489.40x = 4,746,453,498.86
  5. Step 5: Solve for x
    x = 4,746,453,498.86/74,489.40
  6. Step 6: Final answer
    x = 63,719.85

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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.