Home / 56,090.51-77,403.66-30,940.01

Finding the Fourth Proportional to 56,090.51, 77,403.66 and 30,940.01

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Solution

The fourth proportional to 56,090.51, 77,403.66 and 30,940.01 is: 42,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,090.51 : 77,403.66 = 30,940.01 : x
  2. Step 2: Convert to fraction form
    56,090.51/77,403.66 = 30,940.01/x
  3. Step 3: Cross multiply
    56,090.51x = 77,403.66 × 30,940.01
  4. Step 4: Simplify right side
    56,090.51x = 2,394,869,627.42
  5. Step 5: Solve for x
    x = 2,394,869,627.42/56,090.51
  6. Step 6: Final answer
    x = 42,696.52

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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.