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Finding the Fourth Proportional to 60,486.94, 90,730.55 and 18,367.35

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Solution

The fourth proportional to 60,486.94, 90,730.55 and 18,367.35 is: 27,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.94 : 90,730.55 = 18,367.35 : x
  2. Step 2: Convert to fraction form
    60,486.94/90,730.55 = 18,367.35/x
  3. Step 3: Cross multiply
    60,486.94x = 90,730.55 × 18,367.35
  4. Step 4: Simplify right side
    60,486.94x = 1,666,479,767.54
  5. Step 5: Solve for x
    x = 1,666,479,767.54/60,486.94
  6. Step 6: Final answer
    x = 27,551.07

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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.