Home / 99,539.60-137,364.36-54,827.60

Finding the Fourth Proportional to 99,539.60, 137,364.36 and 54,827.60

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Solution

The fourth proportional to 99,539.60, 137,364.36 and 54,827.60 is: 75,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,539.60 : 137,364.36 = 54,827.60 : x
  2. Step 2: Convert to fraction form
    99,539.60/137,364.36 = 54,827.60/x
  3. Step 3: Cross multiply
    99,539.60x = 137,364.36 × 54,827.60
  4. Step 4: Simplify right side
    99,539.60x = 7,531,358,184.34
  5. Step 5: Solve for x
    x = 7,531,358,184.34/99,539.60
  6. Step 6: Final answer
    x = 75,661.93

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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.