Home / 53,784.87-80,666.67-51,117.74

Finding the Fourth Proportional to 53,784.87, 80,666.67 and 51,117.74

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Solution

The fourth proportional to 53,784.87, 80,666.67 and 51,117.74 is: 76,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,784.87 : 80,666.67 = 51,117.74 : x
  2. Step 2: Convert to fraction form
    53,784.87/80,666.67 = 51,117.74/x
  3. Step 3: Cross multiply
    53,784.87x = 80,666.67 × 51,117.74
  4. Step 4: Simplify right side
    53,784.87x = 4,123,497,863.73
  5. Step 5: Solve for x
    x = 4,123,497,863.73/53,784.87
  6. Step 6: Final answer
    x = 76,666.50

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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.