Home / 55,309.62-76,326.30-30,159.12

Finding the Fourth Proportional to 55,309.62, 76,326.30 and 30,159.12

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Solution

The fourth proportional to 55,309.62, 76,326.30 and 30,159.12 is: 41,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,309.62 : 76,326.30 = 30,159.12 : x
  2. Step 2: Convert to fraction form
    55,309.62/76,326.30 = 30,159.12/x
  3. Step 3: Cross multiply
    55,309.62x = 76,326.30 × 30,159.12
  4. Step 4: Simplify right side
    55,309.62x = 2,301,934,040.86
  5. Step 5: Solve for x
    x = 2,301,934,040.86/55,309.62
  6. Step 6: Final answer
    x = 41,619.05

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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.