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Finding the Fourth Proportional to 77,576.08, 107,118.12 and 63,238.16

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Solution

The fourth proportional to 77,576.08, 107,118.12 and 63,238.16 is: 87,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.08 : 107,118.12 = 63,238.16 : x
  2. Step 2: Convert to fraction form
    77,576.08/107,118.12 = 63,238.16/x
  3. Step 3: Cross multiply
    77,576.08x = 107,118.12 × 63,238.16
  4. Step 4: Simplify right side
    77,576.08x = 6,773,952,811.46
  5. Step 5: Solve for x
    x = 6,773,952,811.46/77,576.08
  6. Step 6: Final answer
    x = 87,320.12

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1.5x scale

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.