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Finding the Fourth Proportional to 84,158.40, 116,138.88 and 45,917.76

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Solution

The fourth proportional to 84,158.40, 116,138.88 and 45,917.76 is: 63,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,158.40 : 116,138.88 = 45,917.76 : x
  2. Step 2: Convert to fraction form
    84,158.40/116,138.88 = 45,917.76/x
  3. Step 3: Cross multiply
    84,158.40x = 116,138.88 × 45,917.76
  4. Step 4: Simplify right side
    84,158.40x = 5,332,837,218.51
  5. Step 5: Solve for x
    x = 5,332,837,218.51/84,158.40
  6. Step 6: Final answer
    x = 63,366.67

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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.