Home / 90,011.34-135,031.62-27,681.84

Finding the Fourth Proportional to 90,011.34, 135,031.62 and 27,681.84

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Solution

The fourth proportional to 90,011.34, 135,031.62 and 27,681.84 is: 41,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.34 : 135,031.62 = 27,681.84 : x
  2. Step 2: Convert to fraction form
    90,011.34/135,031.62 = 27,681.84/x
  3. Step 3: Cross multiply
    90,011.34x = 135,031.62 × 27,681.84
  4. Step 4: Simplify right side
    90,011.34x = 3,737,923,699.78
  5. Step 5: Solve for x
    x = 3,737,923,699.78/90,011.34
  6. Step 6: Final answer
    x = 41,527.25

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1.5x scale

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.