Home / 100,032.14-138,039.23-54,701.31

Finding the Fourth Proportional to 100,032.14, 138,039.23 and 54,701.31

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Solution

The fourth proportional to 100,032.14, 138,039.23 and 54,701.31 is: 75,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,032.14 : 138,039.23 = 54,701.31 : x
  2. Step 2: Convert to fraction form
    100,032.14/138,039.23 = 54,701.31/x
  3. Step 3: Cross multiply
    100,032.14x = 138,039.23 × 54,701.31
  4. Step 4: Simplify right side
    100,032.14x = 7,550,926,438.88
  5. Step 5: Solve for x
    x = 7,550,926,438.88/100,032.14
  6. Step 6: Final answer
    x = 75,485.01

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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.