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Finding the Fourth Proportional to 60,518.39, 90,777.59 and 18,965.39

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Solution

The fourth proportional to 60,518.39, 90,777.59 and 18,965.39 is: 28,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,518.39 : 90,777.59 = 18,965.39 : x
  2. Step 2: Convert to fraction form
    60,518.39/90,777.59 = 18,965.39/x
  3. Step 3: Cross multiply
    60,518.39x = 90,777.59 × 18,965.39
  4. Step 4: Simplify right side
    60,518.39x = 1,721,632,377.30
  5. Step 5: Solve for x
    x = 1,721,632,377.30/60,518.39
  6. Step 6: Final answer
    x = 28,448.09

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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.