Home / 69,011.28-103,500.45-19,090.31

Finding the Fourth Proportional to 69,011.28, 103,500.45 and 19,090.31

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Solution

The fourth proportional to 69,011.28, 103,500.45 and 19,090.31 is: 28,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,011.28 : 103,500.45 = 19,090.31 : x
  2. Step 2: Convert to fraction form
    69,011.28/103,500.45 = 19,090.31/x
  3. Step 3: Cross multiply
    69,011.28x = 103,500.45 × 19,090.31
  4. Step 4: Simplify right side
    69,011.28x = 1,975,855,158.14
  5. Step 5: Solve for x
    x = 1,975,855,158.14/69,011.28
  6. Step 6: Final answer
    x = 28,630.90

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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.