Home / 83,920.34-125,880.51-57,545.06

Finding the Fourth Proportional to 83,920.34, 125,880.51 and 57,545.06

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Solution

The fourth proportional to 83,920.34, 125,880.51 and 57,545.06 is: 86,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,920.34 : 125,880.51 = 57,545.06 : x
  2. Step 2: Convert to fraction form
    83,920.34/125,880.51 = 57,545.06/x
  3. Step 3: Cross multiply
    83,920.34x = 125,880.51 × 57,545.06
  4. Step 4: Simplify right side
    83,920.34x = 7,243,801,500.78
  5. Step 5: Solve for x
    x = 7,243,801,500.78/83,920.34
  6. Step 6: Final answer
    x = 86,317.59

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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.