Home / 45,104.54-67,666.78-13,513.32

Finding the Fourth Proportional to 45,104.54, 67,666.78 and 13,513.32

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Solution

The fourth proportional to 45,104.54, 67,666.78 and 13,513.32 is: 20,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,104.54 : 67,666.78 = 13,513.32 : x
  2. Step 2: Convert to fraction form
    45,104.54/67,666.78 = 13,513.32/x
  3. Step 3: Cross multiply
    45,104.54x = 67,666.78 × 13,513.32
  4. Step 4: Simplify right side
    45,104.54x = 914,402,851.51
  5. Step 5: Solve for x
    x = 914,402,851.51/45,104.54
  6. Step 6: Final answer
    x = 20,272.97

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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.