Home / 74,008.48-102,133.20-40,476.64

Finding the Fourth Proportional to 74,008.48, 102,133.20 and 40,476.64

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Solution

The fourth proportional to 74,008.48, 102,133.20 and 40,476.64 is: 55,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.48 : 102,133.20 = 40,476.64 : x
  2. Step 2: Convert to fraction form
    74,008.48/102,133.20 = 40,476.64/x
  3. Step 3: Cross multiply
    74,008.48x = 102,133.20 × 40,476.64
  4. Step 4: Simplify right side
    74,008.48x = 4,134,008,768.45
  5. Step 5: Solve for x
    x = 4,134,008,768.45/74,008.48
  6. Step 6: Final answer
    x = 55,858.58

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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.