Home / 83,370.60-115,051.49-45,130.03

Finding the Fourth Proportional to 83,370.60, 115,051.49 and 45,130.03

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Solution

The fourth proportional to 83,370.60, 115,051.49 and 45,130.03 is: 62,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,370.60 : 115,051.49 = 45,130.03 : x
  2. Step 2: Convert to fraction form
    83,370.60/115,051.49 = 45,130.03/x
  3. Step 3: Cross multiply
    83,370.60x = 115,051.49 × 45,130.03
  4. Step 4: Simplify right side
    83,370.60x = 5,192,276,394.34
  5. Step 5: Solve for x
    x = 5,192,276,394.34/83,370.60
  6. Step 6: Final answer
    x = 62,279.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.