Home / 81,574.19-122,337.62-34,188.05

Finding the Fourth Proportional to 81,574.19, 122,337.62 and 34,188.05

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Solution

The fourth proportional to 81,574.19, 122,337.62 and 34,188.05 is: 51,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,574.19 : 122,337.62 = 34,188.05 : x
  2. Step 2: Convert to fraction form
    81,574.19/122,337.62 = 34,188.05/x
  3. Step 3: Cross multiply
    81,574.19x = 122,337.62 × 34,188.05
  4. Step 4: Simplify right side
    81,574.19x = 4,182,483,886.81
  5. Step 5: Solve for x
    x = 4,182,483,886.81/81,574.19
  6. Step 6: Final answer
    x = 51,272.15

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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.