Home / 80,062.54-120,089.48-40,618.64

Finding the Fourth Proportional to 80,062.54, 120,089.48 and 40,618.64

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Solution

The fourth proportional to 80,062.54, 120,089.48 and 40,618.64 is: 60,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,062.54 : 120,089.48 = 40,618.64 : x
  2. Step 2: Convert to fraction form
    80,062.54/120,089.48 = 40,618.64/x
  3. Step 3: Cross multiply
    80,062.54x = 120,089.48 × 40,618.64
  4. Step 4: Simplify right side
    80,062.54x = 4,877,871,157.23
  5. Step 5: Solve for x
    x = 4,877,871,157.23/80,062.54
  6. Step 6: Final answer
    x = 60,925.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.