Home / 55,619.13-76,756.38-30,468.63

Finding the Fourth Proportional to 55,619.13, 76,756.38 and 30,468.63

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Solution

The fourth proportional to 55,619.13, 76,756.38 and 30,468.63 is: 42,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.13 : 76,756.38 = 30,468.63 : x
  2. Step 2: Convert to fraction form
    55,619.13/76,756.38 = 30,468.63/x
  3. Step 3: Cross multiply
    55,619.13x = 76,756.38 × 30,468.63
  4. Step 4: Simplify right side
    55,619.13x = 2,338,661,742.36
  5. Step 5: Solve for x
    x = 2,338,661,742.36/55,619.13
  6. Step 6: Final answer
    x = 42,047.79

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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.