Home / 89,420.48-123,404.64-51,698.24

Finding the Fourth Proportional to 89,420.48, 123,404.64 and 51,698.24

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Solution

The fourth proportional to 89,420.48, 123,404.64 and 51,698.24 is: 71,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,420.48 : 123,404.64 = 51,698.24 : x
  2. Step 2: Convert to fraction form
    89,420.48/123,404.64 = 51,698.24/x
  3. Step 3: Cross multiply
    89,420.48x = 123,404.64 × 51,698.24
  4. Step 4: Simplify right side
    89,420.48x = 6,379,802,695.83
  5. Step 5: Solve for x
    x = 6,379,802,695.83/89,420.48
  6. Step 6: Final answer
    x = 71,346.10

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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.