Home / 84,018.12-126,009.82-39,625.80

Finding the Fourth Proportional to 84,018.12, 126,009.82 and 39,625.80

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Solution

The fourth proportional to 84,018.12, 126,009.82 and 39,625.80 is: 59,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,018.12 : 126,009.82 = 39,625.80 : x
  2. Step 2: Convert to fraction form
    84,018.12/126,009.82 = 39,625.80/x
  3. Step 3: Cross multiply
    84,018.12x = 126,009.82 × 39,625.80
  4. Step 4: Simplify right side
    84,018.12x = 4,993,239,925.36
  5. Step 5: Solve for x
    x = 4,993,239,925.36/84,018.12
  6. Step 6: Final answer
    x = 59,430.51

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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.