Home / 53,013.78-73,159.08-29,139.95

Finding the Fourth Proportional to 53,013.78, 73,159.08 and 29,139.95

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Solution

The fourth proportional to 53,013.78, 73,159.08 and 29,139.95 is: 40,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,013.78 : 73,159.08 = 29,139.95 : x
  2. Step 2: Convert to fraction form
    53,013.78/73,159.08 = 29,139.95/x
  3. Step 3: Cross multiply
    53,013.78x = 73,159.08 × 29,139.95
  4. Step 4: Simplify right side
    53,013.78x = 2,131,851,567.45
  5. Step 5: Solve for x
    x = 2,131,851,567.45/53,013.78
  6. Step 6: Final answer
    x = 40,213.16

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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.