Home / 55,661.40-76,812.24-30,167.28

Finding the Fourth Proportional to 55,661.40, 76,812.24 and 30,167.28

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Solution

The fourth proportional to 55,661.40, 76,812.24 and 30,167.28 is: 41,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.40 : 76,812.24 = 30,167.28 : x
  2. Step 2: Convert to fraction form
    55,661.40/76,812.24 = 30,167.28/x
  3. Step 3: Cross multiply
    55,661.40x = 76,812.24 × 30,167.28
  4. Step 4: Simplify right side
    55,661.40x = 2,317,216,351.51
  5. Step 5: Solve for x
    x = 2,317,216,351.51/55,661.40
  6. Step 6: Final answer
    x = 41,630.58

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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.