Home / 74,338.09-102,586.59-40,346.56

Finding the Fourth Proportional to 74,338.09, 102,586.59 and 40,346.56

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Solution

The fourth proportional to 74,338.09, 102,586.59 and 40,346.56 is: 55,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,338.09 : 102,586.59 = 40,346.56 : x
  2. Step 2: Convert to fraction form
    74,338.09/102,586.59 = 40,346.56/x
  3. Step 3: Cross multiply
    74,338.09x = 102,586.59 × 40,346.56
  4. Step 4: Simplify right side
    74,338.09x = 4,139,016,008.63
  5. Step 5: Solve for x
    x = 4,139,016,008.63/74,338.09
  6. Step 6: Final answer
    x = 55,678.27

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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.