Home / 90,526.18-135,756.84-31,345.96

Finding the Fourth Proportional to 90,526.18, 135,756.84 and 31,345.96

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Solution

The fourth proportional to 90,526.18, 135,756.84 and 31,345.96 is: 47,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,526.18 : 135,756.84 = 31,345.96 : x
  2. Step 2: Convert to fraction form
    90,526.18/135,756.84 = 31,345.96/x
  3. Step 3: Cross multiply
    90,526.18x = 135,756.84 × 31,345.96
  4. Step 4: Simplify right side
    90,526.18x = 4,255,428,476.37
  5. Step 5: Solve for x
    x = 4,255,428,476.37/90,526.18
  6. Step 6: Final answer
    x = 47,007.71

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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.