Home / 64,486.76-96,717.18-20,106.32

Finding the Fourth Proportional to 64,486.76, 96,717.18 and 20,106.32

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Solution

The fourth proportional to 64,486.76, 96,717.18 and 20,106.32 is: 30,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.76 : 96,717.18 = 20,106.32 : x
  2. Step 2: Convert to fraction form
    64,486.76/96,717.18 = 20,106.32/x
  3. Step 3: Cross multiply
    64,486.76x = 96,717.18 × 20,106.32
  4. Step 4: Simplify right side
    64,486.76x = 1,944,626,570.58
  5. Step 5: Solve for x
    x = 1,944,626,570.58/64,486.76
  6. Step 6: Final answer
    x = 30,155.44

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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.