Home / 56,139.39-84,212.73-18,697.95

Finding the Fourth Proportional to 56,139.39, 84,212.73 and 18,697.95

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Solution

The fourth proportional to 56,139.39, 84,212.73 and 18,697.95 is: 28,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,139.39 : 84,212.73 = 18,697.95 : x
  2. Step 2: Convert to fraction form
    56,139.39/84,212.73 = 18,697.95/x
  3. Step 3: Cross multiply
    56,139.39x = 84,212.73 × 18,697.95
  4. Step 4: Simplify right side
    56,139.39x = 1,574,605,414.90
  5. Step 5: Solve for x
    x = 1,574,605,414.90/56,139.39
  6. Step 6: Final answer
    x = 28,048.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.