Home / 84,161.40-116,143.02-45,920.76

Finding the Fourth Proportional to 84,161.40, 116,143.02 and 45,920.76

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Solution

The fourth proportional to 84,161.40, 116,143.02 and 45,920.76 is: 63,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,161.40 : 116,143.02 = 45,920.76 : x
  2. Step 2: Convert to fraction form
    84,161.40/116,143.02 = 45,920.76/x
  3. Step 3: Cross multiply
    84,161.40x = 116,143.02 × 45,920.76
  4. Step 4: Simplify right side
    84,161.40x = 5,333,375,747.10
  5. Step 5: Solve for x
    x = 5,333,375,747.10/84,161.40
  6. Step 6: Final answer
    x = 63,370.81

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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.