Home / 55,668.47-76,820.43-30,174.29

Finding the Fourth Proportional to 55,668.47, 76,820.43 and 30,174.29

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Solution

The fourth proportional to 55,668.47, 76,820.43 and 30,174.29 is: 41,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,668.47 : 76,820.43 = 30,174.29 : x
  2. Step 2: Convert to fraction form
    55,668.47/76,820.43 = 30,174.29/x
  3. Step 3: Cross multiply
    55,668.47x = 76,820.43 × 30,174.29
  4. Step 4: Simplify right side
    55,668.47x = 2,318,001,664.39
  5. Step 5: Solve for x
    x = 2,318,001,664.39/55,668.47
  6. Step 6: Final answer
    x = 41,639.40

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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.