Home / 68,621.20-102,931.80-57,795.55

Finding the Fourth Proportional to 68,621.20, 102,931.80 and 57,795.55

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Solution

The fourth proportional to 68,621.20, 102,931.80 and 57,795.55 is: 86,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,621.20 : 102,931.80 = 57,795.55 : x
  2. Step 2: Convert to fraction form
    68,621.20/102,931.80 = 57,795.55/x
  3. Step 3: Cross multiply
    68,621.20x = 102,931.80 × 57,795.55
  4. Step 4: Simplify right side
    68,621.20x = 5,948,999,993.49
  5. Step 5: Solve for x
    x = 5,948,999,993.49/68,621.20
  6. Step 6: Final answer
    x = 86,693.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.