Home / 91,504.31-137,280.12-53,585.60

Finding the Fourth Proportional to 91,504.31, 137,280.12 and 53,585.60

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Solution

The fourth proportional to 91,504.31, 137,280.12 and 53,585.60 is: 80,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,504.31 : 137,280.12 = 53,585.60 : x
  2. Step 2: Convert to fraction form
    91,504.31/137,280.12 = 53,585.60/x
  3. Step 3: Cross multiply
    91,504.31x = 137,280.12 × 53,585.60
  4. Step 4: Simplify right side
    91,504.31x = 7,356,237,598.27
  5. Step 5: Solve for x
    x = 7,356,237,598.27/91,504.31
  6. Step 6: Final answer
    x = 80,392.26

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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.