Home / 83,720.81-115,535.59-45,481.12

Finding the Fourth Proportional to 83,720.81, 115,535.59 and 45,481.12

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Solution

The fourth proportional to 83,720.81, 115,535.59 and 45,481.12 is: 62,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,720.81 : 115,535.59 = 45,481.12 : x
  2. Step 2: Convert to fraction form
    83,720.81/115,535.59 = 45,481.12/x
  3. Step 3: Cross multiply
    83,720.81x = 115,535.59 × 45,481.12
  4. Step 4: Simplify right side
    83,720.81x = 5,254,688,033.06
  5. Step 5: Solve for x
    x = 5,254,688,033.06/83,720.81
  6. Step 6: Final answer
    x = 62,764.42

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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.