Home / 83,615.05-115,388.16-45,373.63

Finding the Fourth Proportional to 83,615.05, 115,388.16 and 45,373.63

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Solution

The fourth proportional to 83,615.05, 115,388.16 and 45,373.63 is: 62,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,615.05 : 115,388.16 = 45,373.63 : x
  2. Step 2: Convert to fraction form
    83,615.05/115,388.16 = 45,373.63/x
  3. Step 3: Cross multiply
    83,615.05x = 115,388.16 × 45,373.63
  4. Step 4: Simplify right side
    83,615.05x = 5,235,580,251.50
  5. Step 5: Solve for x
    x = 5,235,580,251.50/83,615.05
  6. Step 6: Final answer
    x = 62,615.29

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1.5x scale

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.