Home / 55,235.18-76,216.38-31,357.28

Finding the Fourth Proportional to 55,235.18, 76,216.38 and 31,357.28

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Solution

The fourth proportional to 55,235.18, 76,216.38 and 31,357.28 is: 43,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,235.18 : 76,216.38 = 31,357.28 : x
  2. Step 2: Convert to fraction form
    55,235.18/76,216.38 = 31,357.28/x
  3. Step 3: Cross multiply
    55,235.18x = 76,216.38 × 31,357.28
  4. Step 4: Simplify right side
    55,235.18x = 2,389,938,368.25
  5. Step 5: Solve for x
    x = 2,389,938,368.25/55,235.18
  6. Step 6: Final answer
    x = 43,268.41

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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.