Home / 98,341.43-135,709.88-55,317.69

Finding the Fourth Proportional to 98,341.43, 135,709.88 and 55,317.69

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Solution

The fourth proportional to 98,341.43, 135,709.88 and 55,317.69 is: 76,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341.43 : 135,709.88 = 55,317.69 : x
  2. Step 2: Convert to fraction form
    98,341.43/135,709.88 = 55,317.69/x
  3. Step 3: Cross multiply
    98,341.43x = 135,709.88 × 55,317.69
  4. Step 4: Simplify right side
    98,341.43x = 7,507,156,795.19
  5. Step 5: Solve for x
    x = 7,507,156,795.19/98,341.43
  6. Step 6: Final answer
    x = 76,337.69

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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.