Home / 74,741.67-103,130.82-42,909.89

Finding the Fourth Proportional to 74,741.67, 103,130.82 and 42,909.89

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Solution

The fourth proportional to 74,741.67, 103,130.82 and 42,909.89 is: 59,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.67 : 103,130.82 = 42,909.89 : x
  2. Step 2: Convert to fraction form
    74,741.67/103,130.82 = 42,909.89/x
  3. Step 3: Cross multiply
    74,741.67x = 103,130.82 × 42,909.89
  4. Step 4: Simplify right side
    74,741.67x = 4,425,331,626.16
  5. Step 5: Solve for x
    x = 4,425,331,626.16/74,741.67
  6. Step 6: Final answer
    x = 59,208.36

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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.