Home / 56,356.25-77,774.06-31,205.75

Finding the Fourth Proportional to 56,356.25, 77,774.06 and 31,205.75

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Solution

The fourth proportional to 56,356.25, 77,774.06 and 31,205.75 is: 43,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.25 : 77,774.06 = 31,205.75 : x
  2. Step 2: Convert to fraction form
    56,356.25/77,774.06 = 31,205.75/x
  3. Step 3: Cross multiply
    56,356.25x = 77,774.06 × 31,205.75
  4. Step 4: Simplify right side
    56,356.25x = 2,426,997,716.82
  5. Step 5: Solve for x
    x = 2,426,997,716.82/56,356.25
  6. Step 6: Final answer
    x = 43,065.28

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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.