Home / 54,337.20-81,505.80-39,368.40

Finding the Fourth Proportional to 54,337.20, 81,505.80 and 39,368.40

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Solution

The fourth proportional to 54,337.20, 81,505.80 and 39,368.40 is: 59,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,337.20 : 81,505.80 = 39,368.40 : x
  2. Step 2: Convert to fraction form
    54,337.20/81,505.80 = 39,368.40/x
  3. Step 3: Cross multiply
    54,337.20x = 81,505.80 × 39,368.40
  4. Step 4: Simplify right side
    54,337.20x = 3,208,752,936.72
  5. Step 5: Solve for x
    x = 3,208,752,936.72/54,337.20
  6. Step 6: Final answer
    x = 59,052.60

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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.