Home / 53,899.84-74,381.84-31,243.20

Finding the Fourth Proportional to 53,899.84, 74,381.84 and 31,243.20

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Solution

The fourth proportional to 53,899.84, 74,381.84 and 31,243.20 is: 43,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,899.84 : 74,381.84 = 31,243.20 : x
  2. Step 2: Convert to fraction form
    53,899.84/74,381.84 = 31,243.20/x
  3. Step 3: Cross multiply
    53,899.84x = 74,381.84 × 31,243.20
  4. Step 4: Simplify right side
    53,899.84x = 2,323,926,703.49
  5. Step 5: Solve for x
    x = 2,323,926,703.49/53,899.84
  6. Step 6: Final answer
    x = 43,115.65

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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.