Home / 92,811.80-128,080.35-50,370.32

Finding the Fourth Proportional to 92,811.80, 128,080.35 and 50,370.32

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Solution

The fourth proportional to 92,811.80, 128,080.35 and 50,370.32 is: 69,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,811.80 : 128,080.35 = 50,370.32 : x
  2. Step 2: Convert to fraction form
    92,811.80/128,080.35 = 50,370.32/x
  3. Step 3: Cross multiply
    92,811.80x = 128,080.35 × 50,370.32
  4. Step 4: Simplify right side
    92,811.80x = 6,451,447,574.81
  5. Step 5: Solve for x
    x = 6,451,447,574.81/92,811.80
  6. Step 6: Final answer
    x = 69,511.07

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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.