Home / 74,009.48-102,134.58-40,477.64

Finding the Fourth Proportional to 74,009.48, 102,134.58 and 40,477.64

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Solution

The fourth proportional to 74,009.48, 102,134.58 and 40,477.64 is: 55,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,009.48 : 102,134.58 = 40,477.64 : x
  2. Step 2: Convert to fraction form
    74,009.48/102,134.58 = 40,477.64/x
  3. Step 3: Cross multiply
    74,009.48x = 102,134.58 × 40,477.64
  4. Step 4: Simplify right side
    74,009.48x = 4,134,166,760.79
  5. Step 5: Solve for x
    x = 4,134,166,760.79/74,009.48
  6. Step 6: Final answer
    x = 55,859.96

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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.