Home / 63,580.14-87,740.96-39,720.68

Finding the Fourth Proportional to 63,580.14, 87,740.96 and 39,720.68

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Solution

The fourth proportional to 63,580.14, 87,740.96 and 39,720.68 is: 54,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,580.14 : 87,740.96 = 39,720.68 : x
  2. Step 2: Convert to fraction form
    63,580.14/87,740.96 = 39,720.68/x
  3. Step 3: Cross multiply
    63,580.14x = 87,740.96 × 39,720.68
  4. Step 4: Simplify right side
    63,580.14x = 3,485,130,286.77
  5. Step 5: Solve for x
    x = 3,485,130,286.77/63,580.14
  6. Step 6: Final answer
    x = 54,814.76

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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.