Home / 84,684.69-126,937.44-31,342.32

Finding the Fourth Proportional to 84,684.69, 126,937.44 and 31,342.32

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Solution

The fourth proportional to 84,684.69, 126,937.44 and 31,342.32 is: 46,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,684.69 : 126,937.44 = 31,342.32 : x
  2. Step 2: Convert to fraction form
    84,684.69/126,937.44 = 31,342.32/x
  3. Step 3: Cross multiply
    84,684.69x = 126,937.44 × 31,342.32
  4. Step 4: Simplify right side
    84,684.69x = 3,978,513,864.46
  5. Step 5: Solve for x
    x = 3,978,513,864.46/84,684.69
  6. Step 6: Final answer
    x = 46,980.32

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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.