Home / 83,641.06-115,421.55-45,399.79

Finding the Fourth Proportional to 83,641.06, 115,421.55 and 45,399.79

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Solution

The fourth proportional to 83,641.06, 115,421.55 and 45,399.79 is: 62,650.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,641.06 : 115,421.55 = 45,399.79 : x
  2. Step 2: Convert to fraction form
    83,641.06/115,421.55 = 45,399.79/x
  3. Step 3: Cross multiply
    83,641.06x = 115,421.55 × 45,399.79
  4. Step 4: Simplify right side
    83,641.06x = 5,240,113,842.92
  5. Step 5: Solve for x
    x = 5,240,113,842.92/83,641.06
  6. Step 6: Final answer
    x = 62,650.02

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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.