Home / 84,155.75-116,139.39-48,348.08

Finding the Fourth Proportional to 84,155.75, 116,139.39 and 48,348.08

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Solution

The fourth proportional to 84,155.75, 116,139.39 and 48,348.08 is: 66,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,155.75 : 116,139.39 = 48,348.08 : x
  2. Step 2: Convert to fraction form
    84,155.75/116,139.39 = 48,348.08/x
  3. Step 3: Cross multiply
    84,155.75x = 116,139.39 × 48,348.08
  4. Step 4: Simplify right side
    84,155.75x = 5,615,115,938.17
  5. Step 5: Solve for x
    x = 5,615,115,938.17/84,155.75
  6. Step 6: Final answer
    x = 66,722.91

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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.