Home / 74,073.48-102,220.98-42,241.68

Finding the Fourth Proportional to 74,073.48, 102,220.98 and 42,241.68

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Solution

The fourth proportional to 74,073.48, 102,220.98 and 42,241.68 is: 58,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073.48 : 102,220.98 = 42,241.68 : x
  2. Step 2: Convert to fraction form
    74,073.48/102,220.98 = 42,241.68/x
  3. Step 3: Cross multiply
    74,073.48x = 102,220.98 × 42,241.68
  4. Step 4: Simplify right side
    74,073.48x = 4,317,985,926.45
  5. Step 5: Solve for x
    x = 4,317,985,926.45/74,073.48
  6. Step 6: Final answer
    x = 58,293.28

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1.5x scale

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.