Home / 56,288.85-77,678.02-30,794.95

Finding the Fourth Proportional to 56,288.85, 77,678.02 and 30,794.95

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Solution

The fourth proportional to 56,288.85, 77,678.02 and 30,794.95 is: 42,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,288.85 : 77,678.02 = 30,794.95 : x
  2. Step 2: Convert to fraction form
    56,288.85/77,678.02 = 30,794.95/x
  3. Step 3: Cross multiply
    56,288.85x = 77,678.02 × 30,794.95
  4. Step 4: Simplify right side
    56,288.85x = 2,392,090,588.02
  5. Step 5: Solve for x
    x = 2,392,090,588.02/56,288.85
  6. Step 6: Final answer
    x = 42,496.71

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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.