Home / 75,712.12-104,482.72-43,899.47

Finding the Fourth Proportional to 75,712.12, 104,482.72 and 43,899.47

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Solution

The fourth proportional to 75,712.12, 104,482.72 and 43,899.47 is: 60,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.12 : 104,482.72 = 43,899.47 : x
  2. Step 2: Convert to fraction form
    75,712.12/104,482.72 = 43,899.47/x
  3. Step 3: Cross multiply
    75,712.12x = 104,482.72 × 43,899.47
  4. Step 4: Simplify right side
    75,712.12x = 4,586,736,032.16
  5. Step 5: Solve for x
    x = 4,586,736,032.16/75,712.12
  6. Step 6: Final answer
    x = 60,581.27

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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.