Home / 83,867.84-115,739.80-45,629.76

Finding the Fourth Proportional to 83,867.84, 115,739.80 and 45,629.76

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Solution

The fourth proportional to 83,867.84, 115,739.80 and 45,629.76 is: 62,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,867.84 : 115,739.80 = 45,629.76 : x
  2. Step 2: Convert to fraction form
    83,867.84/115,739.80 = 45,629.76/x
  3. Step 3: Cross multiply
    83,867.84x = 115,739.80 × 45,629.76
  4. Step 4: Simplify right side
    83,867.84x = 5,281,179,296.45
  5. Step 5: Solve for x
    x = 5,281,179,296.45/83,867.84
  6. Step 6: Final answer
    x = 62,970.26

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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.