Home / 57,011.41-85,423.62-40,289.77

Finding the Fourth Proportional to 57,011.41, 85,423.62 and 40,289.77

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Solution

The fourth proportional to 57,011.41, 85,423.62 and 40,289.77 is: 60,368.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.41 : 85,423.62 = 40,289.77 : x
  2. Step 2: Convert to fraction form
    57,011.41/85,423.62 = 40,289.77/x
  3. Step 3: Cross multiply
    57,011.41x = 85,423.62 × 40,289.77
  4. Step 4: Simplify right side
    57,011.41x = 3,441,697,575.25
  5. Step 5: Solve for x
    x = 3,441,697,575.25/57,011.41
  6. Step 6: Final answer
    x = 60,368.58

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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.