Home / 42,746.96-64,124.09-11,161.22

Finding the Fourth Proportional to 42,746.96, 64,124.09 and 11,161.22

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Solution

The fourth proportional to 42,746.96, 64,124.09 and 11,161.22 is: 16,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.96 : 64,124.09 = 11,161.22 : x
  2. Step 2: Convert to fraction form
    42,746.96/64,124.09 = 11,161.22/x
  3. Step 3: Cross multiply
    42,746.96x = 64,124.09 × 11,161.22
  4. Step 4: Simplify right side
    42,746.96x = 715,702,741.22
  5. Step 5: Solve for x
    x = 715,702,741.22/42,746.96
  6. Step 6: Final answer
    x = 16,742.77

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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.