Home / 56,983.74-78,640.28-34,329.76

Finding the Fourth Proportional to 56,983.74, 78,640.28 and 34,329.76

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Solution

The fourth proportional to 56,983.74, 78,640.28 and 34,329.76 is: 47,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.74 : 78,640.28 = 34,329.76 : x
  2. Step 2: Convert to fraction form
    56,983.74/78,640.28 = 34,329.76/x
  3. Step 3: Cross multiply
    56,983.74x = 78,640.28 × 34,329.76
  4. Step 4: Simplify right side
    56,983.74x = 2,699,701,938.73
  5. Step 5: Solve for x
    x = 2,699,701,938.73/56,983.74
  6. Step 6: Final answer
    x = 47,376.71

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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.