Home / 79,985.10-110,378.51-43,686.37

Finding the Fourth Proportional to 79,985.10, 110,378.51 and 43,686.37

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Solution

The fourth proportional to 79,985.10, 110,378.51 and 43,686.37 is: 60,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,985.10 : 110,378.51 = 43,686.37 : x
  2. Step 2: Convert to fraction form
    79,985.10/110,378.51 = 43,686.37/x
  3. Step 3: Cross multiply
    79,985.10x = 110,378.51 × 43,686.37
  4. Step 4: Simplify right side
    79,985.10x = 4,822,036,427.91
  5. Step 5: Solve for x
    x = 4,822,036,427.91/79,985.10
  6. Step 6: Final answer
    x = 60,286.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.