Home / 56,489.36-77,952.70-30,995.09

Finding the Fourth Proportional to 56,489.36, 77,952.70 and 30,995.09

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Solution

The fourth proportional to 56,489.36, 77,952.70 and 30,995.09 is: 42,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.36 : 77,952.70 = 30,995.09 : x
  2. Step 2: Convert to fraction form
    56,489.36/77,952.70 = 30,995.09/x
  3. Step 3: Cross multiply
    56,489.36x = 77,952.70 × 30,995.09
  4. Step 4: Simplify right side
    56,489.36x = 2,416,150,407.50
  5. Step 5: Solve for x
    x = 2,416,150,407.50/56,489.36
  6. Step 6: Final answer
    x = 42,771.78

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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.