Home / 54,387.56-75,056.12-30,515.98

Finding the Fourth Proportional to 54,387.56, 75,056.12 and 30,515.98

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Solution

The fourth proportional to 54,387.56, 75,056.12 and 30,515.98 is: 42,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,387.56 : 75,056.12 = 30,515.98 : x
  2. Step 2: Convert to fraction form
    54,387.56/75,056.12 = 30,515.98/x
  3. Step 3: Cross multiply
    54,387.56x = 75,056.12 × 30,515.98
  4. Step 4: Simplify right side
    54,387.56x = 2,290,411,056.80
  5. Step 5: Solve for x
    x = 2,290,411,056.80/54,387.56
  6. Step 6: Final answer
    x = 42,112.77

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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.