Home / 91,089.40-136,568.48-61,433.68

Finding the Fourth Proportional to 91,089.40, 136,568.48 and 61,433.68

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Solution

The fourth proportional to 91,089.40, 136,568.48 and 61,433.68 is: 92,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,089.40 : 136,568.48 = 61,433.68 : x
  2. Step 2: Convert to fraction form
    91,089.40/136,568.48 = 61,433.68/x
  3. Step 3: Cross multiply
    91,089.40x = 136,568.48 × 61,433.68
  4. Step 4: Simplify right side
    91,089.40x = 8,389,904,298.41
  5. Step 5: Solve for x
    x = 8,389,904,298.41/91,089.40
  6. Step 6: Final answer
    x = 92,106.26

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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.