Home / 84,867.80-127,128.90-43,338.20

Finding the Fourth Proportional to 84,867.80, 127,128.90 and 43,338.20

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Solution

The fourth proportional to 84,867.80, 127,128.90 and 43,338.20 is: 64,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,867.80 : 127,128.90 = 43,338.20 : x
  2. Step 2: Convert to fraction form
    84,867.80/127,128.90 = 43,338.20/x
  3. Step 3: Cross multiply
    84,867.80x = 127,128.90 × 43,338.20
  4. Step 4: Simplify right side
    84,867.80x = 5,509,537,693.98
  5. Step 5: Solve for x
    x = 5,509,537,693.98/84,867.80
  6. Step 6: Final answer
    x = 64,919.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.