Home / 91,120.26-125,746.08-53,394.50

Finding the Fourth Proportional to 91,120.26, 125,746.08 and 53,394.50

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Solution

The fourth proportional to 91,120.26, 125,746.08 and 53,394.50 is: 73,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,120.26 : 125,746.08 = 53,394.50 : x
  2. Step 2: Convert to fraction form
    91,120.26/125,746.08 = 53,394.50/x
  3. Step 3: Cross multiply
    91,120.26x = 125,746.08 × 53,394.50
  4. Step 4: Simplify right side
    91,120.26x = 6,714,149,068.56
  5. Step 5: Solve for x
    x = 6,714,149,068.56/91,120.26
  6. Step 6: Final answer
    x = 73,684.48

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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.