Home / 74,340.56-102,590.75-40,349.36

Finding the Fourth Proportional to 74,340.56, 102,590.75 and 40,349.36

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Solution

The fourth proportional to 74,340.56, 102,590.75 and 40,349.36 is: 55,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.56 : 102,590.75 = 40,349.36 : x
  2. Step 2: Convert to fraction form
    74,340.56/102,590.75 = 40,349.36/x
  3. Step 3: Cross multiply
    74,340.56x = 102,590.75 × 40,349.36
  4. Step 4: Simplify right side
    74,340.56x = 4,139,471,104.42
  5. Step 5: Solve for x
    x = 4,139,471,104.42/74,340.56
  6. Step 6: Final answer
    x = 55,682.54

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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.