Home / 74,533.76-102,858.20-40,999.76

Finding the Fourth Proportional to 74,533.76, 102,858.20 and 40,999.76

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Solution

The fourth proportional to 74,533.76, 102,858.20 and 40,999.76 is: 56,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,533.76 : 102,858.20 = 40,999.76 : x
  2. Step 2: Convert to fraction form
    74,533.76/102,858.20 = 40,999.76/x
  3. Step 3: Cross multiply
    74,533.76x = 102,858.20 × 40,999.76
  4. Step 4: Simplify right side
    74,533.76x = 4,217,161,514.03
  5. Step 5: Solve for x
    x = 4,217,161,514.03/74,533.76
  6. Step 6: Final answer
    x = 56,580.56

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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.