Home / 56,254.40-77,631.15-30,760.88

Finding the Fourth Proportional to 56,254.40, 77,631.15 and 30,760.88

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Solution

The fourth proportional to 56,254.40, 77,631.15 and 30,760.88 is: 42,450.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,254.40 : 77,631.15 = 30,760.88 : x
  2. Step 2: Convert to fraction form
    56,254.40/77,631.15 = 30,760.88/x
  3. Step 3: Cross multiply
    56,254.40x = 77,631.15 × 30,760.88
  4. Step 4: Simplify right side
    56,254.40x = 2,388,002,489.41
  5. Step 5: Solve for x
    x = 2,388,002,489.41/56,254.40
  6. Step 6: Final answer
    x = 42,450.06

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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.