Home / 85,343.79-117,815.40-49,528.02

Finding the Fourth Proportional to 85,343.79, 117,815.40 and 49,528.02

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Solution

The fourth proportional to 85,343.79, 117,815.40 and 49,528.02 is: 68,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,343.79 : 117,815.40 = 49,528.02 : x
  2. Step 2: Convert to fraction form
    85,343.79/117,815.40 = 49,528.02/x
  3. Step 3: Cross multiply
    85,343.79x = 117,815.40 × 49,528.02
  4. Step 4: Simplify right side
    85,343.79x = 5,835,163,487.51
  5. Step 5: Solve for x
    x = 5,835,163,487.51/85,343.79
  6. Step 6: Final answer
    x = 68,372.44

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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.