Home / 40,723.72-61,047.74-15,780.06

Finding the Fourth Proportional to 40,723.72, 61,047.74 and 15,780.06

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Solution

The fourth proportional to 40,723.72, 61,047.74 and 15,780.06 is: 23,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.72 : 61,047.74 = 15,780.06 : x
  2. Step 2: Convert to fraction form
    40,723.72/61,047.74 = 15,780.06/x
  3. Step 3: Cross multiply
    40,723.72x = 61,047.74 × 15,780.06
  4. Step 4: Simplify right side
    40,723.72x = 963,337,039.51
  5. Step 5: Solve for x
    x = 963,337,039.51/40,723.72
  6. Step 6: Final answer
    x = 23,655.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.