Home / 73,302.47-109,986.50-42,137.72

Finding the Fourth Proportional to 73,302.47, 109,986.50 and 42,137.72

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Solution

The fourth proportional to 73,302.47, 109,986.50 and 42,137.72 is: 63,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,302.47 : 109,986.50 = 42,137.72 : x
  2. Step 2: Convert to fraction form
    73,302.47/109,986.50 = 42,137.72/x
  3. Step 3: Cross multiply
    73,302.47x = 109,986.50 × 42,137.72
  4. Step 4: Simplify right side
    73,302.47x = 4,634,579,896.19
  5. Step 5: Solve for x
    x = 4,634,579,896.19/73,302.47
  6. Step 6: Final answer
    x = 63,225.43

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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.