Home / 77,741.40-116,620.42-21,581.74

Finding the Fourth Proportional to 77,741.40, 116,620.42 and 21,581.74

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Solution

The fourth proportional to 77,741.40, 116,620.42 and 21,581.74 is: 32,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,741.40 : 116,620.42 = 21,581.74 : x
  2. Step 2: Convert to fraction form
    77,741.40/116,620.42 = 21,581.74/x
  3. Step 3: Cross multiply
    77,741.40x = 116,620.42 × 21,581.74
  4. Step 4: Simplify right side
    77,741.40x = 2,516,871,583.13
  5. Step 5: Solve for x
    x = 2,516,871,583.13/77,741.40
  6. Step 6: Final answer
    x = 32,374.92

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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.