Home / 101,026.38-139,389.06-57,418.32

Finding the Fourth Proportional to 101,026.38, 139,389.06 and 57,418.32

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Solution

The fourth proportional to 101,026.38, 139,389.06 and 57,418.32 is: 79,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,026.38 : 139,389.06 = 57,418.32 : x
  2. Step 2: Convert to fraction form
    101,026.38/139,389.06 = 57,418.32/x
  3. Step 3: Cross multiply
    101,026.38x = 139,389.06 × 57,418.32
  4. Step 4: Simplify right side
    101,026.38x = 8,003,485,651.58
  5. Step 5: Solve for x
    x = 8,003,485,651.58/101,026.38
  6. Step 6: Final answer
    x = 79,221.74

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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.