Home / 51,931.87-71,582.02-40,581.64

Finding the Fourth Proportional to 51,931.87, 71,582.02 and 40,581.64

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Solution

The fourth proportional to 51,931.87, 71,582.02 and 40,581.64 is: 55,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,931.87 : 71,582.02 = 40,581.64 : x
  2. Step 2: Convert to fraction form
    51,931.87/71,582.02 = 40,581.64/x
  3. Step 3: Cross multiply
    51,931.87x = 71,582.02 × 40,581.64
  4. Step 4: Simplify right side
    51,931.87x = 2,904,915,766.11
  5. Step 5: Solve for x
    x = 2,904,915,766.11/51,931.87
  6. Step 6: Final answer
    x = 55,937.05

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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.