Home / 70,386.42-97,136.37-40,179.90

Finding the Fourth Proportional to 70,386.42, 97,136.37 and 40,179.90

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Solution

The fourth proportional to 70,386.42, 97,136.37 and 40,179.90 is: 55,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,386.42 : 97,136.37 = 40,179.90 : x
  2. Step 2: Convert to fraction form
    70,386.42/97,136.37 = 40,179.90/x
  3. Step 3: Cross multiply
    70,386.42x = 97,136.37 × 40,179.90
  4. Step 4: Simplify right side
    70,386.42x = 3,902,929,632.96
  5. Step 5: Solve for x
    x = 3,902,929,632.96/70,386.42
  6. Step 6: Final answer
    x = 55,450.04

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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.