Home / 86,504.34-119,380.08-48,777.78

Finding the Fourth Proportional to 86,504.34, 119,380.08 and 48,777.78

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Solution

The fourth proportional to 86,504.34, 119,380.08 and 48,777.78 is: 67,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,504.34 : 119,380.08 = 48,777.78 : x
  2. Step 2: Convert to fraction form
    86,504.34/119,380.08 = 48,777.78/x
  3. Step 3: Cross multiply
    86,504.34x = 119,380.08 × 48,777.78
  4. Step 4: Simplify right side
    86,504.34x = 5,823,095,278.62
  5. Step 5: Solve for x
    x = 5,823,095,278.62/86,504.34
  6. Step 6: Final answer
    x = 67,315.64

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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.