Home / 55,990.09-77,266.31-30,839.59

Finding the Fourth Proportional to 55,990.09, 77,266.31 and 30,839.59

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Solution

The fourth proportional to 55,990.09, 77,266.31 and 30,839.59 is: 42,558.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.09 : 77,266.31 = 30,839.59 : x
  2. Step 2: Convert to fraction form
    55,990.09/77,266.31 = 30,839.59/x
  3. Step 3: Cross multiply
    55,990.09x = 77,266.31 × 30,839.59
  4. Step 4: Simplify right side
    55,990.09x = 2,382,860,973.85
  5. Step 5: Solve for x
    x = 2,382,860,973.85/55,990.09
  6. Step 6: Final answer
    x = 42,558.62

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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.