Home / 81,579.68-112,570.12-45,280.96

Finding the Fourth Proportional to 81,579.68, 112,570.12 and 45,280.96

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Solution

The fourth proportional to 81,579.68, 112,570.12 and 45,280.96 is: 62,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,579.68 : 112,570.12 = 45,280.96 : x
  2. Step 2: Convert to fraction form
    81,579.68/112,570.12 = 45,280.96/x
  3. Step 3: Cross multiply
    81,579.68x = 112,570.12 × 45,280.96
  4. Step 4: Simplify right side
    81,579.68x = 5,097,283,100.92
  5. Step 5: Solve for x
    x = 5,097,283,100.92/81,579.68
  6. Step 6: Final answer
    x = 62,482.26

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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.