Home / 68,106.55-93,990.09-56,757.07

Finding the Fourth Proportional to 68,106.55, 93,990.09 and 56,757.07

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Solution

The fourth proportional to 68,106.55, 93,990.09 and 56,757.07 is: 78,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,106.55 : 93,990.09 = 56,757.07 : x
  2. Step 2: Convert to fraction form
    68,106.55/93,990.09 = 56,757.07/x
  3. Step 3: Cross multiply
    68,106.55x = 93,990.09 × 56,757.07
  4. Step 4: Simplify right side
    68,106.55x = 5,334,602,117.44
  5. Step 5: Solve for x
    x = 5,334,602,117.44/68,106.55
  6. Step 6: Final answer
    x = 78,327.30

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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.