Home / 74,340.91-102,590.48-40,349.39

Finding the Fourth Proportional to 74,340.91, 102,590.48 and 40,349.39

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Solution

The fourth proportional to 74,340.91, 102,590.48 and 40,349.39 is: 55,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.91 : 102,590.48 = 40,349.39 : x
  2. Step 2: Convert to fraction form
    74,340.91/102,590.48 = 40,349.39/x
  3. Step 3: Cross multiply
    74,340.91x = 102,590.48 × 40,349.39
  4. Step 4: Simplify right side
    74,340.91x = 4,139,463,452.80
  5. Step 5: Solve for x
    x = 4,139,463,452.80/74,340.91
  6. Step 6: Final answer
    x = 55,682.18

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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.