Home / 55,754.06-76,935.96-30,603.56

Finding the Fourth Proportional to 55,754.06, 76,935.96 and 30,603.56

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Solution

The fourth proportional to 55,754.06, 76,935.96 and 30,603.56 is: 42,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,754.06 : 76,935.96 = 30,603.56 : x
  2. Step 2: Convert to fraction form
    55,754.06/76,935.96 = 30,603.56/x
  3. Step 3: Cross multiply
    55,754.06x = 76,935.96 × 30,603.56
  4. Step 4: Simplify right side
    55,754.06x = 2,354,513,883.34
  5. Step 5: Solve for x
    x = 2,354,513,883.34/55,754.06
  6. Step 6: Final answer
    x = 42,230.36

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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.