Home / 90,954.47-136,415.46-31,807.10

Finding the Fourth Proportional to 90,954.47, 136,415.46 and 31,807.10

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Solution

The fourth proportional to 90,954.47, 136,415.46 and 31,807.10 is: 47,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,954.47 : 136,415.46 = 31,807.10 : x
  2. Step 2: Convert to fraction form
    90,954.47/136,415.46 = 31,807.10/x
  3. Step 3: Cross multiply
    90,954.47x = 136,415.46 × 31,807.10
  4. Step 4: Simplify right side
    90,954.47x = 4,338,980,638.08
  5. Step 5: Solve for x
    x = 4,338,980,638.08/90,954.47
  6. Step 6: Final answer
    x = 47,704.97

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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.