Home / 40,119.36-55,371.24-38,347.64

Finding the Fourth Proportional to 40,119.36, 55,371.24 and 38,347.64

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Solution

The fourth proportional to 40,119.36, 55,371.24 and 38,347.64 is: 52,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,119.36 : 55,371.24 = 38,347.64 : x
  2. Step 2: Convert to fraction form
    40,119.36/55,371.24 = 38,347.64/x
  3. Step 3: Cross multiply
    40,119.36x = 55,371.24 × 38,347.64
  4. Step 4: Simplify right side
    40,119.36x = 2,123,356,377.87
  5. Step 5: Solve for x
    x = 2,123,356,377.87/40,119.36
  6. Step 6: Final answer
    x = 52,925.98

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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.