Home / 84,011.02-126,018.96-31,410.46

Finding the Fourth Proportional to 84,011.02, 126,018.96 and 31,410.46

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Solution

The fourth proportional to 84,011.02, 126,018.96 and 31,410.46 is: 47,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,011.02 : 126,018.96 = 31,410.46 : x
  2. Step 2: Convert to fraction form
    84,011.02/126,018.96 = 31,410.46/x
  3. Step 3: Cross multiply
    84,011.02x = 126,018.96 × 31,410.46
  4. Step 4: Simplify right side
    84,011.02x = 3,958,313,502.32
  5. Step 5: Solve for x
    x = 3,958,313,502.32/84,011.02
  6. Step 6: Final answer
    x = 47,116.60

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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.