Home / 76,207.31-105,166.08-42,218.01

Finding the Fourth Proportional to 76,207.31, 105,166.08 and 42,218.01

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Solution

The fourth proportional to 76,207.31, 105,166.08 and 42,218.01 is: 58,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,207.31 : 105,166.08 = 42,218.01 : x
  2. Step 2: Convert to fraction form
    76,207.31/105,166.08 = 42,218.01/x
  3. Step 3: Cross multiply
    76,207.31x = 105,166.08 × 42,218.01
  4. Step 4: Simplify right side
    76,207.31x = 4,439,902,617.10
  5. Step 5: Solve for x
    x = 4,439,902,617.10/76,207.31
  6. Step 6: Final answer
    x = 58,260.85

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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.