Home / 64,106.85-96,139.76-21,403.11

Finding the Fourth Proportional to 64,106.85, 96,139.76 and 21,403.11

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Solution

The fourth proportional to 64,106.85, 96,139.76 and 21,403.11 is: 32,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,106.85 : 96,139.76 = 21,403.11 : x
  2. Step 2: Convert to fraction form
    64,106.85/96,139.76 = 21,403.11/x
  3. Step 3: Cross multiply
    64,106.85x = 96,139.76 × 21,403.11
  4. Step 4: Simplify right side
    64,106.85x = 2,057,689,751.64
  5. Step 5: Solve for x
    x = 2,057,689,751.64/64,106.85
  6. Step 6: Final answer
    x = 32,097.81

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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.