Home / 83,333.81-125,001.53-21,004.31

Finding the Fourth Proportional to 83,333.81, 125,001.53 and 21,004.31

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Solution

The fourth proportional to 83,333.81, 125,001.53 and 21,004.31 is: 31,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,333.81 : 125,001.53 = 21,004.31 : x
  2. Step 2: Convert to fraction form
    83,333.81/125,001.53 = 21,004.31/x
  3. Step 3: Cross multiply
    83,333.81x = 125,001.53 × 21,004.31
  4. Step 4: Simplify right side
    83,333.81x = 2,625,570,781.57
  5. Step 5: Solve for x
    x = 2,625,570,781.57/83,333.81
  6. Step 6: Final answer
    x = 31,506.67

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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.