Home / 56,395.12-77,822.18-30,896.80

Finding the Fourth Proportional to 56,395.12, 77,822.18 and 30,896.80

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Solution

The fourth proportional to 56,395.12, 77,822.18 and 30,896.80 is: 42,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,395.12 : 77,822.18 = 30,896.80 : x
  2. Step 2: Convert to fraction form
    56,395.12/77,822.18 = 30,896.80/x
  3. Step 3: Cross multiply
    56,395.12x = 77,822.18 × 30,896.80
  4. Step 4: Simplify right side
    56,395.12x = 2,404,456,331.02
  5. Step 5: Solve for x
    x = 2,404,456,331.02/56,395.12
  6. Step 6: Final answer
    x = 42,635.89

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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.