Home / 54,330.60-81,490.77-19,268.40

Finding the Fourth Proportional to 54,330.60, 81,490.77 and 19,268.40

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Solution

The fourth proportional to 54,330.60, 81,490.77 and 19,268.40 is: 28,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.60 : 81,490.77 = 19,268.40 : x
  2. Step 2: Convert to fraction form
    54,330.60/81,490.77 = 19,268.40/x
  3. Step 3: Cross multiply
    54,330.60x = 81,490.77 × 19,268.40
  4. Step 4: Simplify right side
    54,330.60x = 1,570,196,752.67
  5. Step 5: Solve for x
    x = 1,570,196,752.67/54,330.60
  6. Step 6: Final answer
    x = 28,900.78

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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.