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Finding the Fourth Proportional to 101,037.48, 139,425.24 and 55,715.79

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Solution

The fourth proportional to 101,037.48, 139,425.24 and 55,715.79 is: 76,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,037.48 : 139,425.24 = 55,715.79 : x
  2. Step 2: Convert to fraction form
    101,037.48/139,425.24 = 55,715.79/x
  3. Step 3: Cross multiply
    101,037.48x = 139,425.24 × 55,715.79
  4. Step 4: Simplify right side
    101,037.48x = 7,768,187,392.54
  5. Step 5: Solve for x
    x = 7,768,187,392.54/101,037.48
  6. Step 6: Final answer
    x = 76,884.22

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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.