Home / 45,420.80-62,682.18-28,419.62

Finding the Fourth Proportional to 45,420.80, 62,682.18 and 28,419.62

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Solution

The fourth proportional to 45,420.80, 62,682.18 and 28,419.62 is: 39,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.80 : 62,682.18 = 28,419.62 : x
  2. Step 2: Convert to fraction form
    45,420.80/62,682.18 = 28,419.62/x
  3. Step 3: Cross multiply
    45,420.80x = 62,682.18 × 28,419.62
  4. Step 4: Simplify right side
    45,420.80x = 1,781,403,736.37
  5. Step 5: Solve for x
    x = 1,781,403,736.37/45,420.80
  6. Step 6: Final answer
    x = 39,220.00

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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.