Home / 90,344.47-135,534.89-31,182.43

Finding the Fourth Proportional to 90,344.47, 135,534.89 and 31,182.43

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Solution

The fourth proportional to 90,344.47, 135,534.89 and 31,182.43 is: 46,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,344.47 : 135,534.89 = 31,182.43 : x
  2. Step 2: Convert to fraction form
    90,344.47/135,534.89 = 31,182.43/x
  3. Step 3: Cross multiply
    90,344.47x = 135,534.89 × 31,182.43
  4. Step 4: Simplify right side
    90,344.47x = 4,226,307,219.98
  5. Step 5: Solve for x
    x = 4,226,307,219.98/90,344.47
  6. Step 6: Final answer
    x = 46,779.92

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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.