Home / 45,436.95-68,128.70-19,127.34

Finding the Fourth Proportional to 45,436.95, 68,128.70 and 19,127.34

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Solution

The fourth proportional to 45,436.95, 68,128.70 and 19,127.34 is: 28,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,436.95 : 68,128.70 = 19,127.34 : x
  2. Step 2: Convert to fraction form
    45,436.95/68,128.70 = 19,127.34/x
  3. Step 3: Cross multiply
    45,436.95x = 68,128.70 × 19,127.34
  4. Step 4: Simplify right side
    45,436.95x = 1,303,120,713.02
  5. Step 5: Solve for x
    x = 1,303,120,713.02/45,436.95
  6. Step 6: Final answer
    x = 28,679.76

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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.