Home / 69,077.08-103,615.63-19,157.18

Finding the Fourth Proportional to 69,077.08, 103,615.63 and 19,157.18

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Solution

The fourth proportional to 69,077.08, 103,615.63 and 19,157.18 is: 28,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.08 : 103,615.63 = 19,157.18 : x
  2. Step 2: Convert to fraction form
    69,077.08/103,615.63 = 19,157.18/x
  3. Step 3: Cross multiply
    69,077.08x = 103,615.63 × 19,157.18
  4. Step 4: Simplify right side
    69,077.08x = 1,984,983,274.72
  5. Step 5: Solve for x
    x = 1,984,983,274.72/69,077.08
  6. Step 6: Final answer
    x = 28,735.77

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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.