Home / 74,109.58-102,330.18-68,442.25

Finding the Fourth Proportional to 74,109.58, 102,330.18 and 68,442.25

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Solution

The fourth proportional to 74,109.58, 102,330.18 and 68,442.25 is: 94,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.58 : 102,330.18 = 68,442.25 : x
  2. Step 2: Convert to fraction form
    74,109.58/102,330.18 = 68,442.25/x
  3. Step 3: Cross multiply
    74,109.58x = 102,330.18 × 68,442.25
  4. Step 4: Simplify right side
    74,109.58x = 7,003,707,762.11
  5. Step 5: Solve for x
    x = 7,003,707,762.11/74,109.58
  6. Step 6: Final answer
    x = 94,504.76

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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.