Home / 60,774.09-91,201.91-21,331.32

Finding the Fourth Proportional to 60,774.09, 91,201.91 and 21,331.32

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Solution

The fourth proportional to 60,774.09, 91,201.91 and 21,331.32 is: 32,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,774.09 : 91,201.91 = 21,331.32 : x
  2. Step 2: Convert to fraction form
    60,774.09/91,201.91 = 21,331.32/x
  3. Step 3: Cross multiply
    60,774.09x = 91,201.91 × 21,331.32
  4. Step 4: Simplify right side
    60,774.09x = 1,945,457,020.16
  5. Step 5: Solve for x
    x = 1,945,457,020.16/60,774.09
  6. Step 6: Final answer
    x = 32,011.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.