Home / 76,848.56-106,050.81-42,857.09

Finding the Fourth Proportional to 76,848.56, 106,050.81 and 42,857.09

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Solution

The fourth proportional to 76,848.56, 106,050.81 and 42,857.09 is: 59,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,848.56 : 106,050.81 = 42,857.09 : x
  2. Step 2: Convert to fraction form
    76,848.56/106,050.81 = 42,857.09/x
  3. Step 3: Cross multiply
    76,848.56x = 106,050.81 × 42,857.09
  4. Step 4: Simplify right side
    76,848.56x = 4,545,029,154.42
  5. Step 5: Solve for x
    x = 4,545,029,154.42/76,848.56
  6. Step 6: Final answer
    x = 59,142.67

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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.