Home / 40,037.09-55,187.55-31,525.70

Finding the Fourth Proportional to 40,037.09, 55,187.55 and 31,525.70

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Solution

The fourth proportional to 40,037.09, 55,187.55 and 31,525.70 is: 43,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,037.09 : 55,187.55 = 31,525.70 : x
  2. Step 2: Convert to fraction form
    40,037.09/55,187.55 = 31,525.70/x
  3. Step 3: Cross multiply
    40,037.09x = 55,187.55 × 31,525.70
  4. Step 4: Simplify right side
    40,037.09x = 1,739,825,869.10
  5. Step 5: Solve for x
    x = 1,739,825,869.10/40,037.09
  6. Step 6: Final answer
    x = 43,455.36

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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.