Home / 67,909.16-93,720.58-39,623.96

Finding the Fourth Proportional to 67,909.16, 93,720.58 and 39,623.96

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Solution

The fourth proportional to 67,909.16, 93,720.58 and 39,623.96 is: 54,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,909.16 : 93,720.58 = 39,623.96 : x
  2. Step 2: Convert to fraction form
    67,909.16/93,720.58 = 39,623.96/x
  3. Step 3: Cross multiply
    67,909.16x = 93,720.58 × 39,623.96
  4. Step 4: Simplify right side
    67,909.16x = 3,713,580,513.10
  5. Step 5: Solve for x
    x = 3,713,580,513.10/67,909.16
  6. Step 6: Final answer
    x = 54,684.53

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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.