Home / 55,933.20-77,187.02-30,782.70

Finding the Fourth Proportional to 55,933.20, 77,187.02 and 30,782.70

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Solution

The fourth proportional to 55,933.20, 77,187.02 and 30,782.70 is: 42,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,933.20 : 77,187.02 = 30,782.70 : x
  2. Step 2: Convert to fraction form
    55,933.20/77,187.02 = 30,782.70/x
  3. Step 3: Cross multiply
    55,933.20x = 77,187.02 × 30,782.70
  4. Step 4: Simplify right side
    55,933.20x = 2,376,024,726.64
  5. Step 5: Solve for x
    x = 2,376,024,726.64/55,933.20
  6. Step 6: Final answer
    x = 42,479.69

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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.