Home / 77,133.06-106,412.22-50,265.78

Finding the Fourth Proportional to 77,133.06, 106,412.22 and 50,265.78

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Solution

The fourth proportional to 77,133.06, 106,412.22 and 50,265.78 is: 69,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,133.06 : 106,412.22 = 50,265.78 : x
  2. Step 2: Convert to fraction form
    77,133.06/106,412.22 = 50,265.78/x
  3. Step 3: Cross multiply
    77,133.06x = 106,412.22 × 50,265.78
  4. Step 4: Simplify right side
    77,133.06x = 5,348,893,239.83
  5. Step 5: Solve for x
    x = 5,348,893,239.83/77,133.06
  6. Step 6: Final answer
    x = 69,346.31

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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.