Home / 56,477.12-77,938.80-31,327.04

Finding the Fourth Proportional to 56,477.12, 77,938.80 and 31,327.04

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Solution

The fourth proportional to 56,477.12, 77,938.80 and 31,327.04 is: 43,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477.12 : 77,938.80 = 31,327.04 : x
  2. Step 2: Convert to fraction form
    56,477.12/77,938.80 = 31,327.04/x
  3. Step 3: Cross multiply
    56,477.12x = 77,938.80 × 31,327.04
  4. Step 4: Simplify right side
    56,477.12x = 2,441,591,905.15
  5. Step 5: Solve for x
    x = 2,441,591,905.15/56,477.12
  6. Step 6: Final answer
    x = 43,231.52

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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.