Home / 57,921.40-79,907.78-35,242.21

Finding the Fourth Proportional to 57,921.40, 79,907.78 and 35,242.21

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Solution

The fourth proportional to 57,921.40, 79,907.78 and 35,242.21 is: 48,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,921.40 : 79,907.78 = 35,242.21 : x
  2. Step 2: Convert to fraction form
    57,921.40/79,907.78 = 35,242.21/x
  3. Step 3: Cross multiply
    57,921.40x = 79,907.78 × 35,242.21
  4. Step 4: Simplify right side
    57,921.40x = 2,816,126,603.32
  5. Step 5: Solve for x
    x = 2,816,126,603.32/57,921.40
  6. Step 6: Final answer
    x = 48,619.80

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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.