Home / 55,642.23-76,786.25-30,491.19

Finding the Fourth Proportional to 55,642.23, 76,786.25 and 30,491.19

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Solution

The fourth proportional to 55,642.23, 76,786.25 and 30,491.19 is: 42,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.23 : 76,786.25 = 30,491.19 : x
  2. Step 2: Convert to fraction form
    55,642.23/76,786.25 = 30,491.19/x
  3. Step 3: Cross multiply
    55,642.23x = 76,786.25 × 30,491.19
  4. Step 4: Simplify right side
    55,642.23x = 2,341,303,985.68
  5. Step 5: Solve for x
    x = 2,341,303,985.68/55,642.23
  6. Step 6: Final answer
    x = 42,077.82

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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.