Home / 64,617.23-89,167.37-39,137.74

Finding the Fourth Proportional to 64,617.23, 89,167.37 and 39,137.74

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Solution

The fourth proportional to 64,617.23, 89,167.37 and 39,137.74 is: 54,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,617.23 : 89,167.37 = 39,137.74 : x
  2. Step 2: Convert to fraction form
    64,617.23/89,167.37 = 39,137.74/x
  3. Step 3: Cross multiply
    64,617.23x = 89,167.37 × 39,137.74
  4. Step 4: Simplify right side
    64,617.23x = 3,489,808,924.94
  5. Step 5: Solve for x
    x = 3,489,808,924.94/64,617.23
  6. Step 6: Final answer
    x = 54,007.40

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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.