Home / 71,930.07-99,267.84-40,098.87

Finding the Fourth Proportional to 71,930.07, 99,267.84 and 40,098.87

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Solution

The fourth proportional to 71,930.07, 99,267.84 and 40,098.87 is: 55,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,930.07 : 99,267.84 = 40,098.87 : x
  2. Step 2: Convert to fraction form
    71,930.07/99,267.84 = 40,098.87/x
  3. Step 3: Cross multiply
    71,930.07x = 99,267.84 × 40,098.87
  4. Step 4: Simplify right side
    71,930.07x = 3,980,528,211.34
  5. Step 5: Solve for x
    x = 3,980,528,211.34/71,930.07
  6. Step 6: Final answer
    x = 55,338.86

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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.