Home / 101,025.38-139,387.68-57,417.32

Finding the Fourth Proportional to 101,025.38, 139,387.68 and 57,417.32

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Solution

The fourth proportional to 101,025.38, 139,387.68 and 57,417.32 is: 79,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,025.38 : 139,387.68 = 57,417.32 : x
  2. Step 2: Convert to fraction form
    101,025.38/139,387.68 = 57,417.32/x
  3. Step 3: Cross multiply
    101,025.38x = 139,387.68 × 57,417.32
  4. Step 4: Simplify right side
    101,025.38x = 8,003,267,026.62
  5. Step 5: Solve for x
    x = 8,003,267,026.62/101,025.38
  6. Step 6: Final answer
    x = 79,220.36

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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.