Home / 63,624.16-87,783.60-39,775.12

Finding the Fourth Proportional to 63,624.16, 87,783.60 and 39,775.12

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Solution

The fourth proportional to 63,624.16, 87,783.60 and 39,775.12 is: 54,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,624.16 : 87,783.60 = 39,775.12 : x
  2. Step 2: Convert to fraction form
    63,624.16/87,783.60 = 39,775.12/x
  3. Step 3: Cross multiply
    63,624.16x = 87,783.60 × 39,775.12
  4. Step 4: Simplify right side
    63,624.16x = 3,491,603,224.03
  5. Step 5: Solve for x
    x = 3,491,603,224.03/63,624.16
  6. Step 6: Final answer
    x = 54,878.57

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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.