Home / 84,085.61-115,972.50-53,873.75

Finding the Fourth Proportional to 84,085.61, 115,972.50 and 53,873.75

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Solution

The fourth proportional to 84,085.61, 115,972.50 and 53,873.75 is: 74,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085.61 : 115,972.50 = 53,873.75 : x
  2. Step 2: Convert to fraction form
    84,085.61/115,972.50 = 53,873.75/x
  3. Step 3: Cross multiply
    84,085.61x = 115,972.50 × 53,873.75
  4. Step 4: Simplify right side
    84,085.61x = 6,247,873,471.88
  5. Step 5: Solve for x
    x = 6,247,873,471.88/84,085.61
  6. Step 6: Final answer
    x = 74,303.72

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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.