Home / 83,123.08-114,709.70-45,397.32

Finding the Fourth Proportional to 83,123.08, 114,709.70 and 45,397.32

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Solution

The fourth proportional to 83,123.08, 114,709.70 and 45,397.32 is: 62,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,123.08 : 114,709.70 = 45,397.32 : x
  2. Step 2: Convert to fraction form
    83,123.08/114,709.70 = 45,397.32/x
  3. Step 3: Cross multiply
    83,123.08x = 114,709.70 × 45,397.32
  4. Step 4: Simplify right side
    83,123.08x = 5,207,512,958.00
  5. Step 5: Solve for x
    x = 5,207,512,958.00/83,123.08
  6. Step 6: Final answer
    x = 62,648.22

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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.