Home / 55,037.48-75,965.31-31,178.25

Finding the Fourth Proportional to 55,037.48, 75,965.31 and 31,178.25

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Solution

The fourth proportional to 55,037.48, 75,965.31 and 31,178.25 is: 43,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,037.48 : 75,965.31 = 31,178.25 : x
  2. Step 2: Convert to fraction form
    55,037.48/75,965.31 = 31,178.25/x
  3. Step 3: Cross multiply
    55,037.48x = 75,965.31 × 31,178.25
  4. Step 4: Simplify right side
    55,037.48x = 2,368,465,426.51
  5. Step 5: Solve for x
    x = 2,368,465,426.51/55,037.48
  6. Step 6: Final answer
    x = 43,033.69

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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.