Home / 45,142.25-67,697.40-13,114.66

Finding the Fourth Proportional to 45,142.25, 67,697.40 and 13,114.66

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Solution

The fourth proportional to 45,142.25, 67,697.40 and 13,114.66 is: 19,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,142.25 : 67,697.40 = 13,114.66 : x
  2. Step 2: Convert to fraction form
    45,142.25/67,697.40 = 13,114.66/x
  3. Step 3: Cross multiply
    45,142.25x = 67,697.40 × 13,114.66
  4. Step 4: Simplify right side
    45,142.25x = 887,828,255.99
  5. Step 5: Solve for x
    x = 887,828,255.99/45,142.25
  6. Step 6: Final answer
    x = 19,667.35

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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.