Home / 40,575.87-55,931.72-39,788.55

Finding the Fourth Proportional to 40,575.87, 55,931.72 and 39,788.55

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Solution

The fourth proportional to 40,575.87, 55,931.72 and 39,788.55 is: 54,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,575.87 : 55,931.72 = 39,788.55 : x
  2. Step 2: Convert to fraction form
    40,575.87/55,931.72 = 39,788.55/x
  3. Step 3: Cross multiply
    40,575.87x = 55,931.72 × 39,788.55
  4. Step 4: Simplify right side
    40,575.87x = 2,225,441,838.86
  5. Step 5: Solve for x
    x = 2,225,441,838.86/40,575.87
  6. Step 6: Final answer
    x = 54,846.44

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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.