Home / 81,346.55-112,254.86-47,355.91

Finding the Fourth Proportional to 81,346.55, 112,254.86 and 47,355.91

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Solution

The fourth proportional to 81,346.55, 112,254.86 and 47,355.91 is: 65,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.55 : 112,254.86 = 47,355.91 : x
  2. Step 2: Convert to fraction form
    81,346.55/112,254.86 = 47,355.91/x
  3. Step 3: Cross multiply
    81,346.55x = 112,254.86 × 47,355.91
  4. Step 4: Simplify right side
    81,346.55x = 5,315,930,884.98
  5. Step 5: Solve for x
    x = 5,315,930,884.98/81,346.55
  6. Step 6: Final answer
    x = 65,349.19

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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.