Home / 74,146.32-102,245.22-51,510.96

Finding the Fourth Proportional to 74,146.32, 102,245.22 and 51,510.96

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Solution

The fourth proportional to 74,146.32, 102,245.22 and 51,510.96 is: 71,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.32 : 102,245.22 = 51,510.96 : x
  2. Step 2: Convert to fraction form
    74,146.32/102,245.22 = 51,510.96/x
  3. Step 3: Cross multiply
    74,146.32x = 102,245.22 × 51,510.96
  4. Step 4: Simplify right side
    74,146.32x = 5,266,749,437.61
  5. Step 5: Solve for x
    x = 5,266,749,437.61/74,146.32
  6. Step 6: Final answer
    x = 71,031.84

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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.