Home / 85,059.29-127,599.38-28,908.65

Finding the Fourth Proportional to 85,059.29, 127,599.38 and 28,908.65

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Solution

The fourth proportional to 85,059.29, 127,599.38 and 28,908.65 is: 43,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,059.29 : 127,599.38 = 28,908.65 : x
  2. Step 2: Convert to fraction form
    85,059.29/127,599.38 = 28,908.65/x
  3. Step 3: Cross multiply
    85,059.29x = 127,599.38 × 28,908.65
  4. Step 4: Simplify right side
    85,059.29x = 3,688,726,099.50
  5. Step 5: Solve for x
    x = 3,688,726,099.50/85,059.29
  6. Step 6: Final answer
    x = 43,366.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.