Home / 67,677.50-93,405.88-64,687.38

Finding the Fourth Proportional to 67,677.50, 93,405.88 and 64,687.38

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Solution

The fourth proportional to 67,677.50, 93,405.88 and 64,687.38 is: 89,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,677.50 : 93,405.88 = 64,687.38 : x
  2. Step 2: Convert to fraction form
    67,677.50/93,405.88 = 64,687.38/x
  3. Step 3: Cross multiply
    67,677.50x = 93,405.88 × 64,687.38
  4. Step 4: Simplify right side
    67,677.50x = 6,042,181,653.79
  5. Step 5: Solve for x
    x = 6,042,181,653.79/67,677.50
  6. Step 6: Final answer
    x = 89,279.03

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1.5x scale

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.