Home / 85,145.23-127,716.45-29,024.43

Finding the Fourth Proportional to 85,145.23, 127,716.45 and 29,024.43

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Solution

The fourth proportional to 85,145.23, 127,716.45 and 29,024.43 is: 43,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,145.23 : 127,716.45 = 29,024.43 : x
  2. Step 2: Convert to fraction form
    85,145.23/127,716.45 = 29,024.43/x
  3. Step 3: Cross multiply
    85,145.23x = 127,716.45 × 29,024.43
  4. Step 4: Simplify right side
    85,145.23x = 3,706,896,575.10
  5. Step 5: Solve for x
    x = 3,706,896,575.10/85,145.23
  6. Step 6: Final answer
    x = 43,536.16

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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.