Home / 72,459.09-99,995.51-40,627.31

Finding the Fourth Proportional to 72,459.09, 99,995.51 and 40,627.31

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Solution

The fourth proportional to 72,459.09, 99,995.51 and 40,627.31 is: 56,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,459.09 : 99,995.51 = 40,627.31 : x
  2. Step 2: Convert to fraction form
    72,459.09/99,995.51 = 40,627.31/x
  3. Step 3: Cross multiply
    72,459.09x = 99,995.51 × 40,627.31
  4. Step 4: Simplify right side
    72,459.09x = 4,062,548,184.97
  5. Step 5: Solve for x
    x = 4,062,548,184.97/72,459.09
  6. Step 6: Final answer
    x = 56,066.78

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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.