Home / 54,087.60-81,047.78-42,213.22

Finding the Fourth Proportional to 54,087.60, 81,047.78 and 42,213.22

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Solution

The fourth proportional to 54,087.60, 81,047.78 and 42,213.22 is: 63,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,087.60 : 81,047.78 = 42,213.22 : x
  2. Step 2: Convert to fraction form
    54,087.60/81,047.78 = 42,213.22/x
  3. Step 3: Cross multiply
    54,087.60x = 81,047.78 × 42,213.22
  4. Step 4: Simplify right side
    54,087.60x = 3,421,287,767.65
  5. Step 5: Solve for x
    x = 3,421,287,767.65/54,087.60
  6. Step 6: Final answer
    x = 63,254.57

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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.