Home / 53,989.98-80,985.51-18,930.48

Finding the Fourth Proportional to 53,989.98, 80,985.51 and 18,930.48

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Solution

The fourth proportional to 53,989.98, 80,985.51 and 18,930.48 is: 28,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.98 : 80,985.51 = 18,930.48 : x
  2. Step 2: Convert to fraction form
    53,989.98/80,985.51 = 18,930.48/x
  3. Step 3: Cross multiply
    53,989.98x = 80,985.51 × 18,930.48
  4. Step 4: Simplify right side
    53,989.98x = 1,533,094,577.34
  5. Step 5: Solve for x
    x = 1,533,094,577.34/53,989.98
  6. Step 6: Final answer
    x = 28,395.91

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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.