Home / 84,315.03-126,457.96-31,724.97

Finding the Fourth Proportional to 84,315.03, 126,457.96 and 31,724.97

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Solution

The fourth proportional to 84,315.03, 126,457.96 and 31,724.97 is: 47,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,315.03 : 126,457.96 = 31,724.97 : x
  2. Step 2: Convert to fraction form
    84,315.03/126,457.96 = 31,724.97/x
  3. Step 3: Cross multiply
    84,315.03x = 126,457.96 × 31,724.97
  4. Step 4: Simplify right side
    84,315.03x = 4,011,874,987.26
  5. Step 5: Solve for x
    x = 4,011,874,987.26/84,315.03
  6. Step 6: Final answer
    x = 47,581.97

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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.