Home / 72,175.48-99,606.82-40,344.52

Finding the Fourth Proportional to 72,175.48, 99,606.82 and 40,344.52

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Solution

The fourth proportional to 72,175.48, 99,606.82 and 40,344.52 is: 55,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,175.48 : 99,606.82 = 40,344.52 : x
  2. Step 2: Convert to fraction form
    72,175.48/99,606.82 = 40,344.52/x
  3. Step 3: Cross multiply
    72,175.48x = 99,606.82 × 40,344.52
  4. Step 4: Simplify right side
    72,175.48x = 4,018,589,341.63
  5. Step 5: Solve for x
    x = 4,018,589,341.63/72,175.48
  6. Step 6: Final answer
    x = 55,678.04

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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.