Home / 42,206.56-63,172.48-31,108.80

Finding the Fourth Proportional to 42,206.56, 63,172.48 and 31,108.80

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Solution

The fourth proportional to 42,206.56, 63,172.48 and 31,108.80 is: 46,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,206.56 : 63,172.48 = 31,108.80 : x
  2. Step 2: Convert to fraction form
    42,206.56/63,172.48 = 31,108.80/x
  3. Step 3: Cross multiply
    42,206.56x = 63,172.48 × 31,108.80
  4. Step 4: Simplify right side
    42,206.56x = 1,965,220,045.82
  5. Step 5: Solve for x
    x = 1,965,220,045.82/42,206.56
  6. Step 6: Final answer
    x = 46,561.96

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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.