Home / 85,011.22-127,517.10-31,692.16

Finding the Fourth Proportional to 85,011.22, 127,517.10 and 31,692.16

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Solution

The fourth proportional to 85,011.22, 127,517.10 and 31,692.16 is: 47,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.22 : 127,517.10 = 31,692.16 : x
  2. Step 2: Convert to fraction form
    85,011.22/127,517.10 = 31,692.16/x
  3. Step 3: Cross multiply
    85,011.22x = 127,517.10 × 31,692.16
  4. Step 4: Simplify right side
    85,011.22x = 4,041,292,335.94
  5. Step 5: Solve for x
    x = 4,041,292,335.94/85,011.22
  6. Step 6: Final answer
    x = 47,538.34

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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.