Home / 53,782.29-74,221.95-31,122.34

Finding the Fourth Proportional to 53,782.29, 74,221.95 and 31,122.34

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Solution

The fourth proportional to 53,782.29, 74,221.95 and 31,122.34 is: 42,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,782.29 : 74,221.95 = 31,122.34 : x
  2. Step 2: Convert to fraction form
    53,782.29/74,221.95 = 31,122.34/x
  3. Step 3: Cross multiply
    53,782.29x = 74,221.95 × 31,122.34
  4. Step 4: Simplify right side
    53,782.29x = 2,309,960,694.52
  5. Step 5: Solve for x
    x = 2,309,960,694.52/53,782.29
  6. Step 6: Final answer
    x = 42,950.21

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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.