Home / 71,601.12-107,430.64-32,130.72

Finding the Fourth Proportional to 71,601.12, 107,430.64 and 32,130.72

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Solution

The fourth proportional to 71,601.12, 107,430.64 and 32,130.72 is: 48,209.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,601.12 : 107,430.64 = 32,130.72 : x
  2. Step 2: Convert to fraction form
    71,601.12/107,430.64 = 32,130.72/x
  3. Step 3: Cross multiply
    71,601.12x = 107,430.64 × 32,130.72
  4. Step 4: Simplify right side
    71,601.12x = 3,451,823,813.26
  5. Step 5: Solve for x
    x = 3,451,823,813.26/71,601.12
  6. Step 6: Final answer
    x = 48,209.08

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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.