Home / 89,218.36-123,160.91-56,995.35

Finding the Fourth Proportional to 89,218.36, 123,160.91 and 56,995.35

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Solution

The fourth proportional to 89,218.36, 123,160.91 and 56,995.35 is: 78,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.36 : 123,160.91 = 56,995.35 : x
  2. Step 2: Convert to fraction form
    89,218.36/123,160.91 = 56,995.35/x
  3. Step 3: Cross multiply
    89,218.36x = 123,160.91 × 56,995.35
  4. Step 4: Simplify right side
    89,218.36x = 7,019,598,424.94
  5. Step 5: Solve for x
    x = 7,019,598,424.94/89,218.36
  6. Step 6: Final answer
    x = 78,678.85

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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.