Home / 91,237.60-136,804.14-28,041.28

Finding the Fourth Proportional to 91,237.60, 136,804.14 and 28,041.28

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Solution

The fourth proportional to 91,237.60, 136,804.14 and 28,041.28 is: 42,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,237.60 : 136,804.14 = 28,041.28 : x
  2. Step 2: Convert to fraction form
    91,237.60/136,804.14 = 28,041.28/x
  3. Step 3: Cross multiply
    91,237.60x = 136,804.14 × 28,041.28
  4. Step 4: Simplify right side
    91,237.60x = 3,836,163,194.90
  5. Step 5: Solve for x
    x = 3,836,163,194.90/91,237.60
  6. Step 6: Final answer
    x = 42,045.86

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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.