Home / 74,179.92-102,312.48-51,518.94

Finding the Fourth Proportional to 74,179.92, 102,312.48 and 51,518.94

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Solution

The fourth proportional to 74,179.92, 102,312.48 and 51,518.94 is: 71,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.92 : 102,312.48 = 51,518.94 : x
  2. Step 2: Convert to fraction form
    74,179.92/102,312.48 = 51,518.94/x
  3. Step 3: Cross multiply
    74,179.92x = 102,312.48 × 51,518.94
  4. Step 4: Simplify right side
    74,179.92x = 5,271,030,518.37
  5. Step 5: Solve for x
    x = 5,271,030,518.37/74,179.92
  6. Step 6: Final answer
    x = 71,057.38

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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.