Home / 40,779.45-56,277.18-23,781

Finding the Fourth Proportional to 40,779.45, 56,277.18 and 23,781

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Solution

The fourth proportional to 40,779.45, 56,277.18 and 23,781 is: 32,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,779.45 : 56,277.18 = 23,781 : x
  2. Step 2: Convert to fraction form
    40,779.45/56,277.18 = 23,781/x
  3. Step 3: Cross multiply
    40,779.45x = 56,277.18 × 23,781
  4. Step 4: Simplify right side
    40,779.45x = 1,338,327,617.58
  5. Step 5: Solve for x
    x = 1,338,327,617.58/40,779.45
  6. Step 6: Final answer
    x = 32,818.68

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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.