Home / 92,812.09-128,080.75-50,370.62

Finding the Fourth Proportional to 92,812.09, 128,080.75 and 50,370.62

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Solution

The fourth proportional to 92,812.09, 128,080.75 and 50,370.62 is: 69,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,812.09 : 128,080.75 = 50,370.62 : x
  2. Step 2: Convert to fraction form
    92,812.09/128,080.75 = 50,370.62/x
  3. Step 3: Cross multiply
    92,812.09x = 128,080.75 × 50,370.62
  4. Step 4: Simplify right side
    92,812.09x = 6,451,506,787.57
  5. Step 5: Solve for x
    x = 6,451,506,787.57/92,812.09
  6. Step 6: Final answer
    x = 69,511.49

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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.