Home / 72,772.18-100,371.86-50,118.36

Finding the Fourth Proportional to 72,772.18, 100,371.86 and 50,118.36

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Solution

The fourth proportional to 72,772.18, 100,371.86 and 50,118.36 is: 69,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772.18 : 100,371.86 = 50,118.36 : x
  2. Step 2: Convert to fraction form
    72,772.18/100,371.86 = 50,118.36/x
  3. Step 3: Cross multiply
    72,772.18x = 100,371.86 × 50,118.36
  4. Step 4: Simplify right side
    72,772.18x = 5,030,473,013.35
  5. Step 5: Solve for x
    x = 5,030,473,013.35/72,772.18
  6. Step 6: Final answer
    x = 69,126.32

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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.