Home / 55,919.16-77,173.56-30,770.28

Finding the Fourth Proportional to 55,919.16, 77,173.56 and 30,770.28

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Solution

The fourth proportional to 55,919.16, 77,173.56 and 30,770.28 is: 42,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.16 : 77,173.56 = 30,770.28 : x
  2. Step 2: Convert to fraction form
    55,919.16/77,173.56 = 30,770.28/x
  3. Step 3: Cross multiply
    55,919.16x = 77,173.56 × 30,770.28
  4. Step 4: Simplify right side
    55,919.16x = 2,374,652,049.80
  5. Step 5: Solve for x
    x = 2,374,652,049.80/55,919.16
  6. Step 6: Final answer
    x = 42,465.80

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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.