Home / 84,564.09-126,836.42-28,401.93

Finding the Fourth Proportional to 84,564.09, 126,836.42 and 28,401.93

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Solution

The fourth proportional to 84,564.09, 126,836.42 and 28,401.93 is: 42,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564.09 : 126,836.42 = 28,401.93 : x
  2. Step 2: Convert to fraction form
    84,564.09/126,836.42 = 28,401.93/x
  3. Step 3: Cross multiply
    84,564.09x = 126,836.42 × 28,401.93
  4. Step 4: Simplify right side
    84,564.09x = 3,602,398,980.28
  5. Step 5: Solve for x
    x = 3,602,398,980.28/84,564.09
  6. Step 6: Final answer
    x = 42,599.63

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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.