Home / 77,420.03-106,759.28-54,748.67

Finding the Fourth Proportional to 77,420.03, 106,759.28 and 54,748.67

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Solution

The fourth proportional to 77,420.03, 106,759.28 and 54,748.67 is: 75,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,420.03 : 106,759.28 = 54,748.67 : x
  2. Step 2: Convert to fraction form
    77,420.03/106,759.28 = 54,748.67/x
  3. Step 3: Cross multiply
    77,420.03x = 106,759.28 × 54,748.67
  4. Step 4: Simplify right side
    77,420.03x = 5,844,928,193.23
  5. Step 5: Solve for x
    x = 5,844,928,193.23/77,420.03
  6. Step 6: Final answer
    x = 75,496.34

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1.5x scale

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.