Home / 91,590.48-137,405.46-28,409.35

Finding the Fourth Proportional to 91,590.48, 137,405.46 and 28,409.35

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Solution

The fourth proportional to 91,590.48, 137,405.46 and 28,409.35 is: 42,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,590.48 : 137,405.46 = 28,409.35 : x
  2. Step 2: Convert to fraction form
    91,590.48/137,405.46 = 28,409.35/x
  3. Step 3: Cross multiply
    91,590.48x = 137,405.46 × 28,409.35
  4. Step 4: Simplify right side
    91,590.48x = 3,903,599,805.05
  5. Step 5: Solve for x
    x = 3,903,599,805.05/91,590.48
  6. Step 6: Final answer
    x = 42,620.15

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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.