Home / 56,355.75-77,776.61-31,205.25

Finding the Fourth Proportional to 56,355.75, 77,776.61 and 31,205.25

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Solution

The fourth proportional to 56,355.75, 77,776.61 and 31,205.25 is: 43,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.75 : 77,776.61 = 31,205.25 : x
  2. Step 2: Convert to fraction form
    56,355.75/77,776.61 = 31,205.25/x
  3. Step 3: Cross multiply
    56,355.75x = 77,776.61 × 31,205.25
  4. Step 4: Simplify right side
    56,355.75x = 2,427,038,403.18
  5. Step 5: Solve for x
    x = 2,427,038,403.18/56,355.75
  6. Step 6: Final answer
    x = 43,066.38

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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.