Home / 83,986.68-115,899.87-45,746.65

Finding the Fourth Proportional to 83,986.68, 115,899.87 and 45,746.65

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Solution

The fourth proportional to 83,986.68, 115,899.87 and 45,746.65 is: 63,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,986.68 : 115,899.87 = 45,746.65 : x
  2. Step 2: Convert to fraction form
    83,986.68/115,899.87 = 45,746.65/x
  3. Step 3: Cross multiply
    83,986.68x = 115,899.87 × 45,746.65
  4. Step 4: Simplify right side
    83,986.68x = 5,302,030,787.94
  5. Step 5: Solve for x
    x = 5,302,030,787.94/83,986.68
  6. Step 6: Final answer
    x = 63,129.42

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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.