Home / 56,768.81-78,340.97-31,618.31

Finding the Fourth Proportional to 56,768.81, 78,340.97 and 31,618.31

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Solution

The fourth proportional to 56,768.81, 78,340.97 and 31,618.31 is: 43,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,768.81 : 78,340.97 = 31,618.31 : x
  2. Step 2: Convert to fraction form
    56,768.81/78,340.97 = 31,618.31/x
  3. Step 3: Cross multiply
    56,768.81x = 78,340.97 × 31,618.31
  4. Step 4: Simplify right side
    56,768.81x = 2,477,009,350.06
  5. Step 5: Solve for x
    x = 2,477,009,350.06/56,768.81
  6. Step 6: Final answer
    x = 43,633.28

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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.