Home / 55,455.36-76,528.20-30,304.84

Finding the Fourth Proportional to 55,455.36, 76,528.20 and 30,304.84

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Solution

The fourth proportional to 55,455.36, 76,528.20 and 30,304.84 is: 41,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,455.36 : 76,528.20 = 30,304.84 : x
  2. Step 2: Convert to fraction form
    55,455.36/76,528.20 = 30,304.84/x
  3. Step 3: Cross multiply
    55,455.36x = 76,528.20 × 30,304.84
  4. Step 4: Simplify right side
    55,455.36x = 2,319,174,856.49
  5. Step 5: Solve for x
    x = 2,319,174,856.49/55,455.36
  6. Step 6: Final answer
    x = 41,820.57

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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.