Home / 56,919.20-85,378.80-37,892.30

Finding the Fourth Proportional to 56,919.20, 85,378.80 and 37,892.30

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Solution

The fourth proportional to 56,919.20, 85,378.80 and 37,892.30 is: 56,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.20 : 85,378.80 = 37,892.30 : x
  2. Step 2: Convert to fraction form
    56,919.20/85,378.80 = 37,892.30/x
  3. Step 3: Cross multiply
    56,919.20x = 85,378.80 × 37,892.30
  4. Step 4: Simplify right side
    56,919.20x = 3,235,199,103.24
  5. Step 5: Solve for x
    x = 3,235,199,103.24/56,919.20
  6. Step 6: Final answer
    x = 56,838.45

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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.