Home / 89,821.12-123,950.90-49,533.62

Finding the Fourth Proportional to 89,821.12, 123,950.90 and 49,533.62

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Solution

The fourth proportional to 89,821.12, 123,950.90 and 49,533.62 is: 68,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,821.12 : 123,950.90 = 49,533.62 : x
  2. Step 2: Convert to fraction form
    89,821.12/123,950.90 = 49,533.62/x
  3. Step 3: Cross multiply
    89,821.12x = 123,950.90 × 49,533.62
  4. Step 4: Simplify right side
    89,821.12x = 6,139,736,779.26
  5. Step 5: Solve for x
    x = 6,139,736,779.26/89,821.12
  6. Step 6: Final answer
    x = 68,355.16

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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.