Home / 89,254.13-133,815.56-42,539.81

Finding the Fourth Proportional to 89,254.13, 133,815.56 and 42,539.81

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Solution

The fourth proportional to 89,254.13, 133,815.56 and 42,539.81 is: 63,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,254.13 : 133,815.56 = 42,539.81 : x
  2. Step 2: Convert to fraction form
    89,254.13/133,815.56 = 42,539.81/x
  3. Step 3: Cross multiply
    89,254.13x = 133,815.56 × 42,539.81
  4. Step 4: Simplify right side
    89,254.13x = 5,692,487,615.67
  5. Step 5: Solve for x
    x = 5,692,487,615.67/89,254.13
  6. Step 6: Final answer
    x = 63,778.43

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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.