Home / 71,322.12-106,973.46-31,868.64

Finding the Fourth Proportional to 71,322.12, 106,973.46 and 31,868.64

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Solution

The fourth proportional to 71,322.12, 106,973.46 and 31,868.64 is: 47,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,322.12 : 106,973.46 = 31,868.64 : x
  2. Step 2: Convert to fraction form
    71,322.12/106,973.46 = 31,868.64/x
  3. Step 3: Cross multiply
    71,322.12x = 106,973.46 × 31,868.64
  4. Step 4: Simplify right side
    71,322.12x = 3,409,098,686.29
  5. Step 5: Solve for x
    x = 3,409,098,686.29/71,322.12
  6. Step 6: Final answer
    x = 47,798.62

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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.