Home / 70,433.07-105,666.94-20,513.64

Finding the Fourth Proportional to 70,433.07, 105,666.94 and 20,513.64

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Solution

The fourth proportional to 70,433.07, 105,666.94 and 20,513.64 is: 30,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,433.07 : 105,666.94 = 20,513.64 : x
  2. Step 2: Convert to fraction form
    70,433.07/105,666.94 = 20,513.64/x
  3. Step 3: Cross multiply
    70,433.07x = 105,666.94 × 20,513.64
  4. Step 4: Simplify right side
    70,433.07x = 2,167,613,567.06
  5. Step 5: Solve for x
    x = 2,167,613,567.06/70,433.07
  6. Step 6: Final answer
    x = 30,775.51

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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.