Home / 84,139.97-116,125.65-55,455.23

Finding the Fourth Proportional to 84,139.97, 116,125.65 and 55,455.23

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Solution

The fourth proportional to 84,139.97, 116,125.65 and 55,455.23 is: 76,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,139.97 : 116,125.65 = 55,455.23 : x
  2. Step 2: Convert to fraction form
    84,139.97/116,125.65 = 55,455.23/x
  3. Step 3: Cross multiply
    84,139.97x = 116,125.65 × 55,455.23
  4. Step 4: Simplify right side
    84,139.97x = 6,439,774,919.96
  5. Step 5: Solve for x
    x = 6,439,774,919.96/84,139.97
  6. Step 6: Final answer
    x = 76,536.46

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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.