Home / 90,624.51-135,938.14-31,462.06

Finding the Fourth Proportional to 90,624.51, 135,938.14 and 31,462.06

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Solution

The fourth proportional to 90,624.51, 135,938.14 and 31,462.06 is: 47,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,624.51 : 135,938.14 = 31,462.06 : x
  2. Step 2: Convert to fraction form
    90,624.51/135,938.14 = 31,462.06/x
  3. Step 3: Cross multiply
    90,624.51x = 135,938.14 × 31,462.06
  4. Step 4: Simplify right side
    90,624.51x = 4,276,893,759.66
  5. Step 5: Solve for x
    x = 4,276,893,759.66/90,624.51
  6. Step 6: Final answer
    x = 47,193.57

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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.