Home / 81,350.10-112,259.86-47,359.56

Finding the Fourth Proportional to 81,350.10, 112,259.86 and 47,359.56

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Solution

The fourth proportional to 81,350.10, 112,259.86 and 47,359.56 is: 65,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,350.10 : 112,259.86 = 47,359.56 : x
  2. Step 2: Convert to fraction form
    81,350.10/112,259.86 = 47,359.56/x
  3. Step 3: Cross multiply
    81,350.10x = 112,259.86 × 47,359.56
  4. Step 4: Simplify right side
    81,350.10x = 5,316,577,877.84
  5. Step 5: Solve for x
    x = 5,316,577,877.84/81,350.10
  6. Step 6: Final answer
    x = 65,354.29

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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.