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Finding the Fourth Proportional to 55,973.40, 83,957.22 and 20,910.30

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Solution

The fourth proportional to 55,973.40, 83,957.22 and 20,910.30 is: 31,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,973.40 : 83,957.22 = 20,910.30 : x
  2. Step 2: Convert to fraction form
    55,973.40/83,957.22 = 20,910.30/x
  3. Step 3: Cross multiply
    55,973.40x = 83,957.22 × 20,910.30
  4. Step 4: Simplify right side
    55,973.40x = 1,755,570,657.37
  5. Step 5: Solve for x
    x = 1,755,570,657.37/55,973.40
  6. Step 6: Final answer
    x = 31,364.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.