Home / 84,015.04-126,024.72-28,649.92

Finding the Fourth Proportional to 84,015.04, 126,024.72 and 28,649.92

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Solution

The fourth proportional to 84,015.04, 126,024.72 and 28,649.92 is: 42,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015.04 : 126,024.72 = 28,649.92 : x
  2. Step 2: Convert to fraction form
    84,015.04/126,024.72 = 28,649.92/x
  3. Step 3: Cross multiply
    84,015.04x = 126,024.72 × 28,649.92
  4. Step 4: Simplify right side
    84,015.04x = 3,610,598,146.02
  5. Step 5: Solve for x
    x = 3,610,598,146.02/84,015.04
  6. Step 6: Final answer
    x = 42,975.62

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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.