Home / 54,421.95-81,555.05-30,999.99

Finding the Fourth Proportional to 54,421.95, 81,555.05 and 30,999.99

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Solution

The fourth proportional to 54,421.95, 81,555.05 and 30,999.99 is: 46,455.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,421.95 : 81,555.05 = 30,999.99 : x
  2. Step 2: Convert to fraction form
    54,421.95/81,555.05 = 30,999.99/x
  3. Step 3: Cross multiply
    54,421.95x = 81,555.05 × 30,999.99
  4. Step 4: Simplify right side
    54,421.95x = 2,528,205,579.45
  5. Step 5: Solve for x
    x = 2,528,205,579.45/54,421.95
  6. Step 6: Final answer
    x = 46,455.62

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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.