Home / 57,089.59-78,783.77-31,597.71

Finding the Fourth Proportional to 57,089.59, 78,783.77 and 31,597.71

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Solution

The fourth proportional to 57,089.59, 78,783.77 and 31,597.71 is: 43,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.59 : 78,783.77 = 31,597.71 : x
  2. Step 2: Convert to fraction form
    57,089.59/78,783.77 = 31,597.71/x
  3. Step 3: Cross multiply
    57,089.59x = 78,783.77 × 31,597.71
  4. Step 4: Simplify right side
    57,089.59x = 2,489,386,717.17
  5. Step 5: Solve for x
    x = 2,489,386,717.17/57,089.59
  6. Step 6: Final answer
    x = 43,604.91

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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.