Home / 84,302.48-126,356.44-31,678.32

Finding the Fourth Proportional to 84,302.48, 126,356.44 and 31,678.32

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Solution

The fourth proportional to 84,302.48, 126,356.44 and 31,678.32 is: 47,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,302.48 : 126,356.44 = 31,678.32 : x
  2. Step 2: Convert to fraction form
    84,302.48/126,356.44 = 31,678.32/x
  3. Step 3: Cross multiply
    84,302.48x = 126,356.44 × 31,678.32
  4. Step 4: Simplify right side
    84,302.48x = 4,002,759,740.38
  5. Step 5: Solve for x
    x = 4,002,759,740.38/84,302.48
  6. Step 6: Final answer
    x = 47,480.93

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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.