Home / 85,835.87-128,727.50-59,352.04

Finding the Fourth Proportional to 85,835.87, 128,727.50 and 59,352.04

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Solution

The fourth proportional to 85,835.87, 128,727.50 and 59,352.04 is: 89,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,835.87 : 128,727.50 = 59,352.04 : x
  2. Step 2: Convert to fraction form
    85,835.87/128,727.50 = 59,352.04/x
  3. Step 3: Cross multiply
    85,835.87x = 128,727.50 × 59,352.04
  4. Step 4: Simplify right side
    85,835.87x = 7,640,239,593.25
  5. Step 5: Solve for x
    x = 7,640,239,593.25/85,835.87
  6. Step 6: Final answer
    x = 89,009.87

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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.