Home / 56,472.30-77,932.62-30,981.12

Finding the Fourth Proportional to 56,472.30, 77,932.62 and 30,981.12

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Solution

The fourth proportional to 56,472.30, 77,932.62 and 30,981.12 is: 42,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,472.30 : 77,932.62 = 30,981.12 : x
  2. Step 2: Convert to fraction form
    56,472.30/77,932.62 = 30,981.12/x
  3. Step 3: Cross multiply
    56,472.30x = 77,932.62 × 30,981.12
  4. Step 4: Simplify right side
    56,472.30x = 2,414,439,852.13
  5. Step 5: Solve for x
    x = 2,414,439,852.13/56,472.30
  6. Step 6: Final answer
    x = 42,754.41

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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.