Home / 91,709.70-126,585.63-54,005.82

Finding the Fourth Proportional to 91,709.70, 126,585.63 and 54,005.82

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Solution

The fourth proportional to 91,709.70, 126,585.63 and 54,005.82 is: 74,543.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,709.70 : 126,585.63 = 54,005.82 : x
  2. Step 2: Convert to fraction form
    91,709.70/126,585.63 = 54,005.82/x
  3. Step 3: Cross multiply
    91,709.70x = 126,585.63 × 54,005.82
  4. Step 4: Simplify right side
    91,709.70x = 6,836,360,748.37
  5. Step 5: Solve for x
    x = 6,836,360,748.37/91,709.70
  6. Step 6: Final answer
    x = 74,543.49

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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.