Home / 84,209.24-126,287.56-28,036.24

Finding the Fourth Proportional to 84,209.24, 126,287.56 and 28,036.24

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Solution

The fourth proportional to 84,209.24, 126,287.56 and 28,036.24 is: 42,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.24 : 126,287.56 = 28,036.24 : x
  2. Step 2: Convert to fraction form
    84,209.24/126,287.56 = 28,036.24/x
  3. Step 3: Cross multiply
    84,209.24x = 126,287.56 × 28,036.24
  4. Step 4: Simplify right side
    84,209.24x = 3,540,628,341.17
  5. Step 5: Solve for x
    x = 3,540,628,341.17/84,209.24
  6. Step 6: Final answer
    x = 42,045.60

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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.