Home / 53,490.98-73,738.86-40,721.88

Finding the Fourth Proportional to 53,490.98, 73,738.86 and 40,721.88

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Solution

The fourth proportional to 53,490.98, 73,738.86 and 40,721.88 is: 56,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,490.98 : 73,738.86 = 40,721.88 : x
  2. Step 2: Convert to fraction form
    53,490.98/73,738.86 = 40,721.88/x
  3. Step 3: Cross multiply
    53,490.98x = 73,738.86 × 40,721.88
  4. Step 4: Simplify right side
    53,490.98x = 3,002,785,008.26
  5. Step 5: Solve for x
    x = 3,002,785,008.26/53,490.98
  6. Step 6: Final answer
    x = 56,136.29

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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.