Home / 55,804.36-76,986.30-47,270.20

Finding the Fourth Proportional to 55,804.36, 76,986.30 and 47,270.20

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Solution

The fourth proportional to 55,804.36, 76,986.30 and 47,270.20 is: 65,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,804.36 : 76,986.30 = 47,270.20 : x
  2. Step 2: Convert to fraction form
    55,804.36/76,986.30 = 47,270.20/x
  3. Step 3: Cross multiply
    55,804.36x = 76,986.30 × 47,270.20
  4. Step 4: Simplify right side
    55,804.36x = 3,639,157,798.26
  5. Step 5: Solve for x
    x = 3,639,157,798.26/55,804.36
  6. Step 6: Final answer
    x = 65,212.79

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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.