Home / 80,126.04-110,544.84-61,735.20

Finding the Fourth Proportional to 80,126.04, 110,544.84 and 61,735.20

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Solution

The fourth proportional to 80,126.04, 110,544.84 and 61,735.20 is: 85,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,126.04 : 110,544.84 = 61,735.20 : x
  2. Step 2: Convert to fraction form
    80,126.04/110,544.84 = 61,735.20/x
  3. Step 3: Cross multiply
    80,126.04x = 110,544.84 × 61,735.20
  4. Step 4: Simplify right side
    80,126.04x = 6,824,507,806.37
  5. Step 5: Solve for x
    x = 6,824,507,806.37/80,126.04
  6. Step 6: Final answer
    x = 85,172.16

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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.