Home / 84,243.41-116,302.60-57,425.32

Finding the Fourth Proportional to 84,243.41, 116,302.60 and 57,425.32

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Solution

The fourth proportional to 84,243.41, 116,302.60 and 57,425.32 is: 79,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243.41 : 116,302.60 = 57,425.32 : x
  2. Step 2: Convert to fraction form
    84,243.41/116,302.60 = 57,425.32/x
  3. Step 3: Cross multiply
    84,243.41x = 116,302.60 × 57,425.32
  4. Step 4: Simplify right side
    84,243.41x = 6,678,714,021.83
  5. Step 5: Solve for x
    x = 6,678,714,021.83/84,243.41
  6. Step 6: Final answer
    x = 79,278.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.