Home / 53,742.02-80,645.42-18,706.28

Finding the Fourth Proportional to 53,742.02, 80,645.42 and 18,706.28

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Solution

The fourth proportional to 53,742.02, 80,645.42 and 18,706.28 is: 28,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,742.02 : 80,645.42 = 18,706.28 : x
  2. Step 2: Convert to fraction form
    53,742.02/80,645.42 = 18,706.28/x
  3. Step 3: Cross multiply
    53,742.02x = 80,645.42 × 18,706.28
  4. Step 4: Simplify right side
    53,742.02x = 1,508,575,450.78
  5. Step 5: Solve for x
    x = 1,508,575,450.78/53,742.02
  6. Step 6: Final answer
    x = 28,070.69

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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.