Home / 55,652.09-76,800.12-30,158.51

Finding the Fourth Proportional to 55,652.09, 76,800.12 and 30,158.51

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Solution

The fourth proportional to 55,652.09, 76,800.12 and 30,158.51 is: 41,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,652.09 : 76,800.12 = 30,158.51 : x
  2. Step 2: Convert to fraction form
    55,652.09/76,800.12 = 30,158.51/x
  3. Step 3: Cross multiply
    55,652.09x = 76,800.12 × 30,158.51
  4. Step 4: Simplify right side
    55,652.09x = 2,316,177,187.02
  5. Step 5: Solve for x
    x = 2,316,177,187.02/55,652.09
  6. Step 6: Final answer
    x = 41,618.87

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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.