Home / 54,555.72-75,280.78-30,681.89

Finding the Fourth Proportional to 54,555.72, 75,280.78 and 30,681.89

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Solution

The fourth proportional to 54,555.72, 75,280.78 and 30,681.89 is: 42,337.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,555.72 : 75,280.78 = 30,681.89 : x
  2. Step 2: Convert to fraction form
    54,555.72/75,280.78 = 30,681.89/x
  3. Step 3: Cross multiply
    54,555.72x = 75,280.78 × 30,681.89
  4. Step 4: Simplify right side
    54,555.72x = 2,309,756,611.07
  5. Step 5: Solve for x
    x = 2,309,756,611.07/54,555.72
  6. Step 6: Final answer
    x = 42,337.57

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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.