Home / 81,355.86-112,267.78-47,365.32

Finding the Fourth Proportional to 81,355.86, 112,267.78 and 47,365.32

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Solution

The fourth proportional to 81,355.86, 112,267.78 and 47,365.32 is: 65,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,355.86 : 112,267.78 = 47,365.32 : x
  2. Step 2: Convert to fraction form
    81,355.86/112,267.78 = 47,365.32/x
  3. Step 3: Cross multiply
    81,355.86x = 112,267.78 × 47,365.32
  4. Step 4: Simplify right side
    81,355.86x = 5,317,599,325.39
  5. Step 5: Solve for x
    x = 5,317,599,325.39/81,355.86
  6. Step 6: Final answer
    x = 65,362.22

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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.