Home / 71,441.13-107,165.75-21,528.12

Finding the Fourth Proportional to 71,441.13, 107,165.75 and 21,528.12

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Solution

The fourth proportional to 71,441.13, 107,165.75 and 21,528.12 is: 32,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,441.13 : 107,165.75 = 21,528.12 : x
  2. Step 2: Convert to fraction form
    71,441.13/107,165.75 = 21,528.12/x
  3. Step 3: Cross multiply
    71,441.13x = 107,165.75 × 21,528.12
  4. Step 4: Simplify right side
    71,441.13x = 2,307,077,018.25
  5. Step 5: Solve for x
    x = 2,307,077,018.25/71,441.13
  6. Step 6: Final answer
    x = 32,293.40

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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.