Home / 45,392.08-68,078.40-19,089.76

Finding the Fourth Proportional to 45,392.08, 68,078.40 and 19,089.76

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Solution

The fourth proportional to 45,392.08, 68,078.40 and 19,089.76 is: 28,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,392.08 : 68,078.40 = 19,089.76 : x
  2. Step 2: Convert to fraction form
    45,392.08/68,078.40 = 19,089.76/x
  3. Step 3: Cross multiply
    45,392.08x = 68,078.40 × 19,089.76
  4. Step 4: Simplify right side
    45,392.08x = 1,299,600,317.18
  5. Step 5: Solve for x
    x = 1,299,600,317.18/45,392.08
  6. Step 6: Final answer
    x = 28,630.55

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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.