Home / 45,055.47-67,586.81-13,890.63

Finding the Fourth Proportional to 45,055.47, 67,586.81 and 13,890.63

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Solution

The fourth proportional to 45,055.47, 67,586.81 and 13,890.63 is: 20,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,055.47 : 67,586.81 = 13,890.63 : x
  2. Step 2: Convert to fraction form
    45,055.47/67,586.81 = 13,890.63/x
  3. Step 3: Cross multiply
    45,055.47x = 67,586.81 × 13,890.63
  4. Step 4: Simplify right side
    45,055.47x = 938,823,370.59
  5. Step 5: Solve for x
    x = 938,823,370.59/45,055.47
  6. Step 6: Final answer
    x = 20,837.06

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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.