Home / 51,930.87-71,580.65-40,580.64

Finding the Fourth Proportional to 51,930.87, 71,580.65 and 40,580.64

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Solution

The fourth proportional to 51,930.87, 71,580.65 and 40,580.64 is: 55,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,930.87 : 71,580.65 = 40,580.64 : x
  2. Step 2: Convert to fraction form
    51,930.87/71,580.65 = 40,580.64/x
  3. Step 3: Cross multiply
    51,930.87x = 71,580.65 × 40,580.64
  4. Step 4: Simplify right side
    51,930.87x = 2,904,788,385.71
  5. Step 5: Solve for x
    x = 2,904,788,385.71/51,930.87
  6. Step 6: Final answer
    x = 55,935.68

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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.