Home / 45,925.60-68,872.20-20,977.60

Finding the Fourth Proportional to 45,925.60, 68,872.20 and 20,977.60

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Solution

The fourth proportional to 45,925.60, 68,872.20 and 20,977.60 is: 31,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,925.60 : 68,872.20 = 20,977.60 : x
  2. Step 2: Convert to fraction form
    45,925.60/68,872.20 = 20,977.60/x
  3. Step 3: Cross multiply
    45,925.60x = 68,872.20 × 20,977.60
  4. Step 4: Simplify right side
    45,925.60x = 1,444,773,462.72
  5. Step 5: Solve for x
    x = 1,444,773,462.72/45,925.60
  6. Step 6: Final answer
    x = 31,459.00

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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.