Home / 53,001.88-73,143-29,128.95

Finding the Fourth Proportional to 53,001.88, 73,143 and 29,128.95

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Solution

The fourth proportional to 53,001.88, 73,143 and 29,128.95 is: 40,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,001.88 : 73,143 = 29,128.95 : x
  2. Step 2: Convert to fraction form
    53,001.88/73,143 = 29,128.95/x
  3. Step 3: Cross multiply
    53,001.88x = 73,143 × 29,128.95
  4. Step 4: Simplify right side
    53,001.88x = 2,130,578,789.85
  5. Step 5: Solve for x
    x = 2,130,578,789.85/53,001.88
  6. Step 6: Final answer
    x = 40,198.18

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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.