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Finding the Fourth Proportional to 36,666.90, 54,903.15 and 28,890.90

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Solution

The fourth proportional to 36,666.90, 54,903.15 and 28,890.90 is: 43,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,666.90 : 54,903.15 = 28,890.90 : x
  2. Step 2: Convert to fraction form
    36,666.90/54,903.15 = 28,890.90/x
  3. Step 3: Cross multiply
    36,666.90x = 54,903.15 × 28,890.90
  4. Step 4: Simplify right side
    36,666.90x = 1,586,201,416.34
  5. Step 5: Solve for x
    x = 1,586,201,416.34/36,666.90
  6. Step 6: Final answer
    x = 43,259.76

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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.