Home / 74,548.08-111,559.68-56,877.12

Finding the Fourth Proportional to 74,548.08, 111,559.68 and 56,877.12

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Solution

The fourth proportional to 74,548.08, 111,559.68 and 56,877.12 is: 85,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,548.08 : 111,559.68 = 56,877.12 : x
  2. Step 2: Convert to fraction form
    74,548.08/111,559.68 = 56,877.12/x
  3. Step 3: Cross multiply
    74,548.08x = 111,559.68 × 56,877.12
  4. Step 4: Simplify right side
    74,548.08x = 6,345,193,306.52
  5. Step 5: Solve for x
    x = 6,345,193,306.52/74,548.08
  6. Step 6: Final answer
    x = 85,115.45

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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.