Home / 89,331.66-123,288.63-51,605.91

Finding the Fourth Proportional to 89,331.66, 123,288.63 and 51,605.91

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Solution

The fourth proportional to 89,331.66, 123,288.63 and 51,605.91 is: 71,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.66 : 123,288.63 = 51,605.91 : x
  2. Step 2: Convert to fraction form
    89,331.66/123,288.63 = 51,605.91/x
  3. Step 3: Cross multiply
    89,331.66x = 123,288.63 × 51,605.91
  4. Step 4: Simplify right side
    89,331.66x = 6,362,421,943.80
  5. Step 5: Solve for x
    x = 6,362,421,943.80/89,331.66
  6. Step 6: Final answer
    x = 71,222.48

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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.