Home / 54,263.51-74,817.48-39,879.55

Finding the Fourth Proportional to 54,263.51, 74,817.48 and 39,879.55

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Solution

The fourth proportional to 54,263.51, 74,817.48 and 39,879.55 is: 54,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,263.51 : 74,817.48 = 39,879.55 : x
  2. Step 2: Convert to fraction form
    54,263.51/74,817.48 = 39,879.55/x
  3. Step 3: Cross multiply
    54,263.51x = 74,817.48 × 39,879.55
  4. Step 4: Simplify right side
    54,263.51x = 2,983,687,172.72
  5. Step 5: Solve for x
    x = 2,983,687,172.72/54,263.51
  6. Step 6: Final answer
    x = 54,985.15

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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.