Home / 45,118.52-67,633.16-21,384.40

Finding the Fourth Proportional to 45,118.52, 67,633.16 and 21,384.40

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Solution

The fourth proportional to 45,118.52, 67,633.16 and 21,384.40 is: 32,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.52 : 67,633.16 = 21,384.40 : x
  2. Step 2: Convert to fraction form
    45,118.52/67,633.16 = 21,384.40/x
  3. Step 3: Cross multiply
    45,118.52x = 67,633.16 × 21,384.40
  4. Step 4: Simplify right side
    45,118.52x = 1,446,294,546.70
  5. Step 5: Solve for x
    x = 1,446,294,546.70/45,118.52
  6. Step 6: Final answer
    x = 32,055.45

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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.