Home / 45,785.05-68,678.48-30,090.13

Finding the Fourth Proportional to 45,785.05, 68,678.48 and 30,090.13

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Solution

The fourth proportional to 45,785.05, 68,678.48 and 30,090.13 is: 45,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,785.05 : 68,678.48 = 30,090.13 : x
  2. Step 2: Convert to fraction form
    45,785.05/68,678.48 = 30,090.13/x
  3. Step 3: Cross multiply
    45,785.05x = 68,678.48 × 30,090.13
  4. Step 4: Simplify right side
    45,785.05x = 2,066,544,681.25
  5. Step 5: Solve for x
    x = 2,066,544,681.25/45,785.05
  6. Step 6: Final answer
    x = 45,135.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.