Home / 85,010.22-127,515.60-31,691.16

Finding the Fourth Proportional to 85,010.22, 127,515.60 and 31,691.16

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Solution

The fourth proportional to 85,010.22, 127,515.60 and 31,691.16 is: 47,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,010.22 : 127,515.60 = 31,691.16 : x
  2. Step 2: Convert to fraction form
    85,010.22/127,515.60 = 31,691.16/x
  3. Step 3: Cross multiply
    85,010.22x = 127,515.60 × 31,691.16
  4. Step 4: Simplify right side
    85,010.22x = 4,041,117,282.10
  5. Step 5: Solve for x
    x = 4,041,117,282.10/85,010.22
  6. Step 6: Final answer
    x = 47,536.84

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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.