Home / 72,939.43-108,642.05-69,526.63

Finding the Fourth Proportional to 72,939.43, 108,642.05 and 69,526.63

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Solution

The fourth proportional to 72,939.43, 108,642.05 and 69,526.63 is: 103,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939.43 : 108,642.05 = 69,526.63 : x
  2. Step 2: Convert to fraction form
    72,939.43/108,642.05 = 69,526.63/x
  3. Step 3: Cross multiply
    72,939.43x = 108,642.05 × 69,526.63
  4. Step 4: Simplify right side
    72,939.43x = 7,553,515,069.58
  5. Step 5: Solve for x
    x = 7,553,515,069.58/72,939.43
  6. Step 6: Final answer
    x = 103,558.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.