Home / 55,900.80-77,120.30-31,696.65

Finding the Fourth Proportional to 55,900.80, 77,120.30 and 31,696.65

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Solution

The fourth proportional to 55,900.80, 77,120.30 and 31,696.65 is: 43,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.80 : 77,120.30 = 31,696.65 : x
  2. Step 2: Convert to fraction form
    55,900.80/77,120.30 = 31,696.65/x
  3. Step 3: Cross multiply
    55,900.80x = 77,120.30 × 31,696.65
  4. Step 4: Simplify right side
    55,900.80x = 2,444,455,236.24
  5. Step 5: Solve for x
    x = 2,444,455,236.24/55,900.80
  6. Step 6: Final answer
    x = 43,728.45

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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.