Home / 57,090.78-78,802.12-33,228.06

Finding the Fourth Proportional to 57,090.78, 78,802.12 and 33,228.06

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Solution

The fourth proportional to 57,090.78, 78,802.12 and 33,228.06 is: 45,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090.78 : 78,802.12 = 33,228.06 : x
  2. Step 2: Convert to fraction form
    57,090.78/78,802.12 = 33,228.06/x
  3. Step 3: Cross multiply
    57,090.78x = 78,802.12 × 33,228.06
  4. Step 4: Simplify right side
    57,090.78x = 2,618,441,571.49
  5. Step 5: Solve for x
    x = 2,618,441,571.49/57,090.78
  6. Step 6: Final answer
    x = 45,864.53

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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.