Home / 81,535.68-112,415.07-52,804.57

Finding the Fourth Proportional to 81,535.68, 112,415.07 and 52,804.57

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Solution

The fourth proportional to 81,535.68, 112,415.07 and 52,804.57 is: 72,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,535.68 : 112,415.07 = 52,804.57 : x
  2. Step 2: Convert to fraction form
    81,535.68/112,415.07 = 52,804.57/x
  3. Step 3: Cross multiply
    81,535.68x = 112,415.07 × 52,804.57
  4. Step 4: Simplify right side
    81,535.68x = 5,936,029,432.87
  5. Step 5: Solve for x
    x = 5,936,029,432.87/81,535.68
  6. Step 6: Final answer
    x = 72,802.85

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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.