Home / 56,770.40-78,341.04-31,619.36

Finding the Fourth Proportional to 56,770.40, 78,341.04 and 31,619.36

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Solution

The fourth proportional to 56,770.40, 78,341.04 and 31,619.36 is: 43,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770.40 : 78,341.04 = 31,619.36 : x
  2. Step 2: Convert to fraction form
    56,770.40/78,341.04 = 31,619.36/x
  3. Step 3: Cross multiply
    56,770.40x = 78,341.04 × 31,619.36
  4. Step 4: Simplify right side
    56,770.40x = 2,477,093,546.53
  5. Step 5: Solve for x
    x = 2,477,093,546.53/56,770.40
  6. Step 6: Final answer
    x = 43,633.54

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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.