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Finding the Fourth Proportional to 30,189.01, 45,268.79 and 9,124.99

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Solution

The fourth proportional to 30,189.01, 45,268.79 and 9,124.99 is: 13,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.01 : 45,268.79 = 9,124.99 : x
  2. Step 2: Convert to fraction form
    30,189.01/45,268.79 = 9,124.99/x
  3. Step 3: Cross multiply
    30,189.01x = 45,268.79 × 9,124.99
  4. Step 4: Simplify right side
    30,189.01x = 413,077,256.06
  5. Step 5: Solve for x
    x = 413,077,256.06/30,189.01
  6. Step 6: Final answer
    x = 13,683.03

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1.5x scale

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.