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Finding the Fourth Proportional to 101,048.61, 139,444.77 and 55,725.30

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Solution

The fourth proportional to 101,048.61, 139,444.77 and 55,725.30 is: 76,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,048.61 : 139,444.77 = 55,725.30 : x
  2. Step 2: Convert to fraction form
    101,048.61/139,444.77 = 55,725.30/x
  3. Step 3: Cross multiply
    101,048.61x = 139,444.77 × 55,725.30
  4. Step 4: Simplify right side
    101,048.61x = 7,770,601,641.68
  5. Step 5: Solve for x
    x = 7,770,601,641.68/101,048.61
  6. Step 6: Final answer
    x = 76,899.64

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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.