Home / 84,947.89-127,342.23-28,748.67

Finding the Fourth Proportional to 84,947.89, 127,342.23 and 28,748.67

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Solution

The fourth proportional to 84,947.89, 127,342.23 and 28,748.67 is: 43,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,947.89 : 127,342.23 = 28,748.67 : x
  2. Step 2: Convert to fraction form
    84,947.89/127,342.23 = 28,748.67/x
  3. Step 3: Cross multiply
    84,947.89x = 127,342.23 × 28,748.67
  4. Step 4: Simplify right side
    84,947.89x = 3,660,919,878.29
  5. Step 5: Solve for x
    x = 3,660,919,878.29/84,947.89
  6. Step 6: Final answer
    x = 43,096.07

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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.