Home / 45,405.39-62,690.31-28,416.51

Finding the Fourth Proportional to 45,405.39, 62,690.31 and 28,416.51

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Solution

The fourth proportional to 45,405.39, 62,690.31 and 28,416.51 is: 39,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.39 : 62,690.31 = 28,416.51 : x
  2. Step 2: Convert to fraction form
    45,405.39/62,690.31 = 28,416.51/x
  3. Step 3: Cross multiply
    45,405.39x = 62,690.31 × 28,416.51
  4. Step 4: Simplify right side
    45,405.39x = 1,781,439,821.02
  5. Step 5: Solve for x
    x = 1,781,439,821.02/45,405.39
  6. Step 6: Final answer
    x = 39,234.10

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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.