Home / 55,990.56-77,266.95-30,840.06

Finding the Fourth Proportional to 55,990.56, 77,266.95 and 30,840.06

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Solution

The fourth proportional to 55,990.56, 77,266.95 and 30,840.06 is: 42,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.56 : 77,266.95 = 30,840.06 : x
  2. Step 2: Convert to fraction form
    55,990.56/77,266.95 = 30,840.06/x
  3. Step 3: Cross multiply
    55,990.56x = 77,266.95 × 30,840.06
  4. Step 4: Simplify right side
    55,990.56x = 2,382,917,374.02
  5. Step 5: Solve for x
    x = 2,382,917,374.02/55,990.56
  6. Step 6: Final answer
    x = 42,559.27

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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.