Home / 55,057.52-75,984.67-30,858.37

Finding the Fourth Proportional to 55,057.52, 75,984.67 and 30,858.37

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Solution

The fourth proportional to 55,057.52, 75,984.67 and 30,858.37 is: 42,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,057.52 : 75,984.67 = 30,858.37 : x
  2. Step 2: Convert to fraction form
    55,057.52/75,984.67 = 30,858.37/x
  3. Step 3: Cross multiply
    55,057.52x = 75,984.67 × 30,858.37
  4. Step 4: Simplify right side
    55,057.52x = 2,344,762,909.80
  5. Step 5: Solve for x
    x = 2,344,762,909.80/55,057.52
  6. Step 6: Final answer
    x = 42,587.51

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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.