Home / 64,421.55-96,634.76-17,678.07

Finding the Fourth Proportional to 64,421.55, 96,634.76 and 17,678.07

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Solution

The fourth proportional to 64,421.55, 96,634.76 and 17,678.07 is: 26,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,421.55 : 96,634.76 = 17,678.07 : x
  2. Step 2: Convert to fraction form
    64,421.55/96,634.76 = 17,678.07/x
  3. Step 3: Cross multiply
    64,421.55x = 96,634.76 × 17,678.07
  4. Step 4: Simplify right side
    64,421.55x = 1,708,315,963.32
  5. Step 5: Solve for x
    x = 1,708,315,963.32/64,421.55
  6. Step 6: Final answer
    x = 26,517.77

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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.