Home / 45,424.05-68,138.80-19,130.84

Finding the Fourth Proportional to 45,424.05, 68,138.80 and 19,130.84

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Solution

The fourth proportional to 45,424.05, 68,138.80 and 19,130.84 is: 28,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,424.05 : 68,138.80 = 19,130.84 : x
  2. Step 2: Convert to fraction form
    45,424.05/68,138.80 = 19,130.84/x
  3. Step 3: Cross multiply
    45,424.05x = 68,138.80 × 19,130.84
  4. Step 4: Simplify right side
    45,424.05x = 1,303,552,139.90
  5. Step 5: Solve for x
    x = 1,303,552,139.90/45,424.05
  6. Step 6: Final answer
    x = 28,697.40

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1.5x scale

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.