Home / 64,676.64-89,277.36-40,818.84

Finding the Fourth Proportional to 64,676.64, 89,277.36 and 40,818.84

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Solution

The fourth proportional to 64,676.64, 89,277.36 and 40,818.84 is: 56,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,676.64 : 89,277.36 = 40,818.84 : x
  2. Step 2: Convert to fraction form
    64,676.64/89,277.36 = 40,818.84/x
  3. Step 3: Cross multiply
    64,676.64x = 89,277.36 × 40,818.84
  4. Step 4: Simplify right side
    64,676.64x = 3,644,198,273.46
  5. Step 5: Solve for x
    x = 3,644,198,273.46/64,676.64
  6. Step 6: Final answer
    x = 56,344.89

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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.