Home / 74,403.36-102,676.32-40,868.64

Finding the Fourth Proportional to 74,403.36, 102,676.32 and 40,868.64

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Solution

The fourth proportional to 74,403.36, 102,676.32 and 40,868.64 is: 56,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.36 : 102,676.32 = 40,868.64 : x
  2. Step 2: Convert to fraction form
    74,403.36/102,676.32 = 40,868.64/x
  3. Step 3: Cross multiply
    74,403.36x = 102,676.32 × 40,868.64
  4. Step 4: Simplify right side
    74,403.36x = 4,196,241,558.60
  5. Step 5: Solve for x
    x = 4,196,241,558.60/74,403.36
  6. Step 6: Final answer
    x = 56,398.55

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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.