Home / 55,887.06-77,122.58-30,736.56

Finding the Fourth Proportional to 55,887.06, 77,122.58 and 30,736.56

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Solution

The fourth proportional to 55,887.06, 77,122.58 and 30,736.56 is: 42,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,887.06 : 77,122.58 = 30,736.56 : x
  2. Step 2: Convert to fraction form
    55,887.06/77,122.58 = 30,736.56/x
  3. Step 3: Cross multiply
    55,887.06x = 77,122.58 × 30,736.56
  4. Step 4: Simplify right side
    55,887.06x = 2,370,482,653.84
  5. Step 5: Solve for x
    x = 2,370,482,653.84/55,887.06
  6. Step 6: Final answer
    x = 42,415.59

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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.