Home / 63,421.78-87,563.01-39,558.10

Finding the Fourth Proportional to 63,421.78, 87,563.01 and 39,558.10

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Solution

The fourth proportional to 63,421.78, 87,563.01 and 39,558.10 is: 54,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.78 : 87,563.01 = 39,558.10 : x
  2. Step 2: Convert to fraction form
    63,421.78/87,563.01 = 39,558.10/x
  3. Step 3: Cross multiply
    63,421.78x = 87,563.01 × 39,558.10
  4. Step 4: Simplify right side
    63,421.78x = 3,463,826,305.88
  5. Step 5: Solve for x
    x = 3,463,826,305.88/63,421.78
  6. Step 6: Final answer
    x = 54,615.72

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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.