Home / 84,387.15-126,593.01-31,104.63

Finding the Fourth Proportional to 84,387.15, 126,593.01 and 31,104.63

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Solution

The fourth proportional to 84,387.15, 126,593.01 and 31,104.63 is: 46,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,387.15 : 126,593.01 = 31,104.63 : x
  2. Step 2: Convert to fraction form
    84,387.15/126,593.01 = 31,104.63/x
  3. Step 3: Cross multiply
    84,387.15x = 126,593.01 × 31,104.63
  4. Step 4: Simplify right side
    84,387.15x = 3,937,628,736.64
  5. Step 5: Solve for x
    x = 3,937,628,736.64/84,387.15
  6. Step 6: Final answer
    x = 46,661.47

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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.