Home / 90,637.10-135,901.65-55,601.90

Finding the Fourth Proportional to 90,637.10, 135,901.65 and 55,601.90

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Solution

The fourth proportional to 90,637.10, 135,901.65 and 55,601.90 is: 83,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637.10 : 135,901.65 = 55,601.90 : x
  2. Step 2: Convert to fraction form
    90,637.10/135,901.65 = 55,601.90/x
  3. Step 3: Cross multiply
    90,637.10x = 135,901.65 × 55,601.90
  4. Step 4: Simplify right side
    90,637.10x = 7,556,389,953.14
  5. Step 5: Solve for x
    x = 7,556,389,953.14/90,637.10
  6. Step 6: Final answer
    x = 83,369.72

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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.