Home / 81,544.20-112,426.80-52,813.08

Finding the Fourth Proportional to 81,544.20, 112,426.80 and 52,813.08

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Solution

The fourth proportional to 81,544.20, 112,426.80 and 52,813.08 is: 72,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,544.20 : 112,426.80 = 52,813.08 : x
  2. Step 2: Convert to fraction form
    81,544.20/112,426.80 = 52,813.08/x
  3. Step 3: Cross multiply
    81,544.20x = 112,426.80 × 52,813.08
  4. Step 4: Simplify right side
    81,544.20x = 5,937,605,582.54
  5. Step 5: Solve for x
    x = 5,937,605,582.54/81,544.20
  6. Step 6: Final answer
    x = 72,814.57

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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.