Home / 70,324.07-105,464.09-20,407.62

Finding the Fourth Proportional to 70,324.07, 105,464.09 and 20,407.62

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Solution

The fourth proportional to 70,324.07, 105,464.09 and 20,407.62 is: 30,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,324.07 : 105,464.09 = 20,407.62 : x
  2. Step 2: Convert to fraction form
    70,324.07/105,464.09 = 20,407.62/x
  3. Step 3: Cross multiply
    70,324.07x = 105,464.09 × 20,407.62
  4. Step 4: Simplify right side
    70,324.07x = 2,152,271,072.37
  5. Step 5: Solve for x
    x = 2,152,271,072.37/70,324.07
  6. Step 6: Final answer
    x = 30,605.04

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1.5x scale

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.