Home / 78,044.66-107,701.62-42,234.67

Finding the Fourth Proportional to 78,044.66, 107,701.62 and 42,234.67

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Solution

The fourth proportional to 78,044.66, 107,701.62 and 42,234.67 is: 58,283.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.66 : 107,701.62 = 42,234.67 : x
  2. Step 2: Convert to fraction form
    78,044.66/107,701.62 = 42,234.67/x
  3. Step 3: Cross multiply
    78,044.66x = 107,701.62 × 42,234.67
  4. Step 4: Simplify right side
    78,044.66x = 4,548,742,560.31
  5. Step 5: Solve for x
    x = 4,548,742,560.31/78,044.66
  6. Step 6: Final answer
    x = 58,283.84

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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.