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Finding the Fourth Proportional to 56,480.54, 77,944.21 and 30,988.22

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Solution

The fourth proportional to 56,480.54, 77,944.21 and 30,988.22 is: 42,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.54 : 77,944.21 = 30,988.22 : x
  2. Step 2: Convert to fraction form
    56,480.54/77,944.21 = 30,988.22/x
  3. Step 3: Cross multiply
    56,480.54x = 77,944.21 × 30,988.22
  4. Step 4: Simplify right side
    56,480.54x = 2,415,351,860.01
  5. Step 5: Solve for x
    x = 2,415,351,860.01/56,480.54
  6. Step 6: Final answer
    x = 42,764.32

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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.