Home / 91,982.12-127,031.70-63,376.16

Finding the Fourth Proportional to 91,982.12, 127,031.70 and 63,376.16

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Solution

The fourth proportional to 91,982.12, 127,031.70 and 63,376.16 is: 87,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,982.12 : 127,031.70 = 63,376.16 : x
  2. Step 2: Convert to fraction form
    91,982.12/127,031.70 = 63,376.16/x
  3. Step 3: Cross multiply
    91,982.12x = 127,031.70 × 63,376.16
  4. Step 4: Simplify right side
    91,982.12x = 8,050,780,709.11
  5. Step 5: Solve for x
    x = 8,050,780,709.11/91,982.12
  6. Step 6: Final answer
    x = 87,525.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.