Home / 83,988.60-115,904.43-45,748.03

Finding the Fourth Proportional to 83,988.60, 115,904.43 and 45,748.03

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Solution

The fourth proportional to 83,988.60, 115,904.43 and 45,748.03 is: 63,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,988.60 : 115,904.43 = 45,748.03 : x
  2. Step 2: Convert to fraction form
    83,988.60/115,904.43 = 45,748.03/x
  3. Step 3: Cross multiply
    83,988.60x = 115,904.43 × 45,748.03
  4. Step 4: Simplify right side
    83,988.60x = 5,302,399,340.77
  5. Step 5: Solve for x
    x = 5,302,399,340.77/83,988.60
  6. Step 6: Final answer
    x = 63,132.37

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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.