Home / 55,238.40-76,230-30,088.32

Finding the Fourth Proportional to 55,238.40, 76,230 and 30,088.32

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Solution

The fourth proportional to 55,238.40, 76,230 and 30,088.32 is: 41,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,238.40 : 76,230 = 30,088.32 : x
  2. Step 2: Convert to fraction form
    55,238.40/76,230 = 30,088.32/x
  3. Step 3: Cross multiply
    55,238.40x = 76,230 × 30,088.32
  4. Step 4: Simplify right side
    55,238.40x = 2,293,632,633.60
  5. Step 5: Solve for x
    x = 2,293,632,633.60/55,238.40
  6. Step 6: Final answer
    x = 41,522.43

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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.