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Finding the Fourth Proportional to 60,427.69, 90,646.39 and 18,874.69

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Solution

The fourth proportional to 60,427.69, 90,646.39 and 18,874.69 is: 28,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,427.69 : 90,646.39 = 18,874.69 : x
  2. Step 2: Convert to fraction form
    60,427.69/90,646.39 = 18,874.69/x
  3. Step 3: Cross multiply
    60,427.69x = 90,646.39 × 18,874.69
  4. Step 4: Simplify right side
    60,427.69x = 1,710,922,307.85
  5. Step 5: Solve for x
    x = 1,710,922,307.85/60,427.69
  6. Step 6: Final answer
    x = 28,313.55

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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.