Home / 76,345.10-105,344.73-43,637.15

Finding the Fourth Proportional to 76,345.10, 105,344.73 and 43,637.15

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Solution

The fourth proportional to 76,345.10, 105,344.73 and 43,637.15 is: 60,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,345.10 : 105,344.73 = 43,637.15 : x
  2. Step 2: Convert to fraction form
    76,345.10/105,344.73 = 43,637.15/x
  3. Step 3: Cross multiply
    76,345.10x = 105,344.73 × 43,637.15
  4. Step 4: Simplify right side
    76,345.10x = 4,596,943,784.72
  5. Step 5: Solve for x
    x = 4,596,943,784.72/76,345.10
  6. Step 6: Final answer
    x = 60,212.69

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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.