Home / 71,753.85-99,156.86-53,817.72

Finding the Fourth Proportional to 71,753.85, 99,156.86 and 53,817.72

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Solution

The fourth proportional to 71,753.85, 99,156.86 and 53,817.72 is: 74,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.85 : 99,156.86 = 53,817.72 : x
  2. Step 2: Convert to fraction form
    71,753.85/99,156.86 = 53,817.72/x
  3. Step 3: Cross multiply
    71,753.85x = 99,156.86 × 53,817.72
  4. Step 4: Simplify right side
    71,753.85x = 5,336,395,688.45
  5. Step 5: Solve for x
    x = 5,336,395,688.45/71,753.85
  6. Step 6: Final answer
    x = 74,370.86

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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.