Home / 45,405.77-62,690.85-28,416.87

Finding the Fourth Proportional to 45,405.77, 62,690.85 and 28,416.87

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Solution

The fourth proportional to 45,405.77, 62,690.85 and 28,416.87 is: 39,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.77 : 62,690.85 = 28,416.87 : x
  2. Step 2: Convert to fraction form
    45,405.77/62,690.85 = 28,416.87/x
  3. Step 3: Cross multiply
    45,405.77x = 62,690.85 × 28,416.87
  4. Step 4: Simplify right side
    45,405.77x = 1,781,477,734.64
  5. Step 5: Solve for x
    x = 1,781,477,734.64/45,405.77
  6. Step 6: Final answer
    x = 39,234.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.