Home / 83,577.90-115,309.45-47,742.54

Finding the Fourth Proportional to 83,577.90, 115,309.45 and 47,742.54

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Solution

The fourth proportional to 83,577.90, 115,309.45 and 47,742.54 is: 65,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,577.90 : 115,309.45 = 47,742.54 : x
  2. Step 2: Convert to fraction form
    83,577.90/115,309.45 = 47,742.54/x
  3. Step 3: Cross multiply
    83,577.90x = 115,309.45 × 47,742.54
  4. Step 4: Simplify right side
    83,577.90x = 5,505,166,088.68
  5. Step 5: Solve for x
    x = 5,505,166,088.68/83,577.90
  6. Step 6: Final answer
    x = 65,868.68

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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.