Home / 67,678.56-93,405.96-39,393.36

Finding the Fourth Proportional to 67,678.56, 93,405.96 and 39,393.36

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Solution

The fourth proportional to 67,678.56, 93,405.96 and 39,393.36 is: 54,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,678.56 : 93,405.96 = 39,393.36 : x
  2. Step 2: Convert to fraction form
    67,678.56/93,405.96 = 39,393.36/x
  3. Step 3: Cross multiply
    67,678.56x = 93,405.96 × 39,393.36
  4. Step 4: Simplify right side
    67,678.56x = 3,679,574,608.43
  5. Step 5: Solve for x
    x = 3,679,574,608.43/67,678.56
  6. Step 6: Final answer
    x = 54,368.39

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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.