Home / 84,259.19-126,388.77-21,929.69

Finding the Fourth Proportional to 84,259.19, 126,388.77 and 21,929.69

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Solution

The fourth proportional to 84,259.19, 126,388.77 and 21,929.69 is: 32,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259.19 : 126,388.77 = 21,929.69 : x
  2. Step 2: Convert to fraction form
    84,259.19/126,388.77 = 21,929.69/x
  3. Step 3: Cross multiply
    84,259.19x = 126,388.77 × 21,929.69
  4. Step 4: Simplify right side
    84,259.19x = 2,771,666,545.58
  5. Step 5: Solve for x
    x = 2,771,666,545.58/84,259.19
  6. Step 6: Final answer
    x = 32,894.53

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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.