Home / 85,519.62-128,155.50-58,838.22

Finding the Fourth Proportional to 85,519.62, 128,155.50 and 58,838.22

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Solution

The fourth proportional to 85,519.62, 128,155.50 and 58,838.22 is: 88,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,519.62 : 128,155.50 = 58,838.22 : x
  2. Step 2: Convert to fraction form
    85,519.62/128,155.50 = 58,838.22/x
  3. Step 3: Cross multiply
    85,519.62x = 128,155.50 × 58,838.22
  4. Step 4: Simplify right side
    85,519.62x = 7,540,441,503.21
  5. Step 5: Solve for x
    x = 7,540,441,503.21/85,519.62
  6. Step 6: Final answer
    x = 88,172.07

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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.