Home / 50,485.18-75,679.50-18,886.66

Finding the Fourth Proportional to 50,485.18, 75,679.50 and 18,886.66

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Solution

The fourth proportional to 50,485.18, 75,679.50 and 18,886.66 is: 28,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,485.18 : 75,679.50 = 18,886.66 : x
  2. Step 2: Convert to fraction form
    50,485.18/75,679.50 = 18,886.66/x
  3. Step 3: Cross multiply
    50,485.18x = 75,679.50 × 18,886.66
  4. Step 4: Simplify right side
    50,485.18x = 1,429,332,985.47
  5. Step 5: Solve for x
    x = 1,429,332,985.47/50,485.18
  6. Step 6: Final answer
    x = 28,311.93

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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.