Home / 55,900.82-77,144.34-30,750.32

Finding the Fourth Proportional to 55,900.82, 77,144.34 and 30,750.32

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Solution

The fourth proportional to 55,900.82, 77,144.34 and 30,750.32 is: 42,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.82 : 77,144.34 = 30,750.32 : x
  2. Step 2: Convert to fraction form
    55,900.82/77,144.34 = 30,750.32/x
  3. Step 3: Cross multiply
    55,900.82x = 77,144.34 × 30,750.32
  4. Step 4: Simplify right side
    55,900.82x = 2,372,213,141.19
  5. Step 5: Solve for x
    x = 2,372,213,141.19/55,900.82
  6. Step 6: Final answer
    x = 42,436.11

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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.