Home / 57,302.81-79,073.91-31,807.16

Finding the Fourth Proportional to 57,302.81, 79,073.91 and 31,807.16

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Solution

The fourth proportional to 57,302.81, 79,073.91 and 31,807.16 is: 43,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,302.81 : 79,073.91 = 31,807.16 : x
  2. Step 2: Convert to fraction form
    57,302.81/79,073.91 = 31,807.16/x
  3. Step 3: Cross multiply
    57,302.81x = 79,073.91 × 31,807.16
  4. Step 4: Simplify right side
    57,302.81x = 2,515,116,111.83
  5. Step 5: Solve for x
    x = 2,515,116,111.83/57,302.81
  6. Step 6: Final answer
    x = 43,891.68

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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.