Home / 89,235.86-123,128.44-51,007.53

Finding the Fourth Proportional to 89,235.86, 123,128.44 and 51,007.53

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Solution

The fourth proportional to 89,235.86, 123,128.44 and 51,007.53 is: 70,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,235.86 : 123,128.44 = 51,007.53 : x
  2. Step 2: Convert to fraction form
    89,235.86/123,128.44 = 51,007.53/x
  3. Step 3: Cross multiply
    89,235.86x = 123,128.44 × 51,007.53
  4. Step 4: Simplify right side
    89,235.86x = 6,280,477,342.12
  5. Step 5: Solve for x
    x = 6,280,477,342.12/89,235.86
  6. Step 6: Final answer
    x = 70,380.64

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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.