Home / 100,009.28-138,027.30-57,567.44

Finding the Fourth Proportional to 100,009.28, 138,027.30 and 57,567.44

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Solution

The fourth proportional to 100,009.28, 138,027.30 and 57,567.44 is: 79,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,009.28 : 138,027.30 = 57,567.44 : x
  2. Step 2: Convert to fraction form
    100,009.28/138,027.30 = 57,567.44/x
  3. Step 3: Cross multiply
    100,009.28x = 138,027.30 × 57,567.44
  4. Step 4: Simplify right side
    100,009.28x = 7,945,878,311.11
  5. Step 5: Solve for x
    x = 7,945,878,311.11/100,009.28
  6. Step 6: Final answer
    x = 79,451.41

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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.