Home / 89,159.37-123,039.69-53,349.36

Finding the Fourth Proportional to 89,159.37, 123,039.69 and 53,349.36

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Solution

The fourth proportional to 89,159.37, 123,039.69 and 53,349.36 is: 73,621.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,159.37 : 123,039.69 = 53,349.36 : x
  2. Step 2: Convert to fraction form
    89,159.37/123,039.69 = 53,349.36/x
  3. Step 3: Cross multiply
    89,159.37x = 123,039.69 × 53,349.36
  4. Step 4: Simplify right side
    89,159.37x = 6,564,088,716.10
  5. Step 5: Solve for x
    x = 6,564,088,716.10/89,159.37
  6. Step 6: Final answer
    x = 73,621.97

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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.