Home / 84,167.26-126,274.60-28,012.40

Finding the Fourth Proportional to 84,167.26, 126,274.60 and 28,012.40

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Solution

The fourth proportional to 84,167.26, 126,274.60 and 28,012.40 is: 42,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,167.26 : 126,274.60 = 28,012.40 : x
  2. Step 2: Convert to fraction form
    84,167.26/126,274.60 = 28,012.40/x
  3. Step 3: Cross multiply
    84,167.26x = 126,274.60 × 28,012.40
  4. Step 4: Simplify right side
    84,167.26x = 3,537,254,605.04
  5. Step 5: Solve for x
    x = 3,537,254,605.04/84,167.26
  6. Step 6: Final answer
    x = 42,026.49

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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.