Home / 76,848.15-106,048.34-42,857.67

Finding the Fourth Proportional to 76,848.15, 106,048.34 and 42,857.67

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Solution

The fourth proportional to 76,848.15, 106,048.34 and 42,857.67 is: 59,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,848.15 : 106,048.34 = 42,857.67 : x
  2. Step 2: Convert to fraction form
    76,848.15/106,048.34 = 42,857.67/x
  3. Step 3: Cross multiply
    76,848.15x = 106,048.34 × 42,857.67
  4. Step 4: Simplify right side
    76,848.15x = 4,544,984,545.48
  5. Step 5: Solve for x
    x = 4,544,984,545.48/76,848.15
  6. Step 6: Final answer
    x = 59,142.41

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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.