Home / 76,570.54-105,637.80-56,475.07

Finding the Fourth Proportional to 76,570.54, 105,637.80 and 56,475.07

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Solution

The fourth proportional to 76,570.54, 105,637.80 and 56,475.07 is: 77,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,570.54 : 105,637.80 = 56,475.07 : x
  2. Step 2: Convert to fraction form
    76,570.54/105,637.80 = 56,475.07/x
  3. Step 3: Cross multiply
    76,570.54x = 105,637.80 × 56,475.07
  4. Step 4: Simplify right side
    76,570.54x = 5,965,902,149.65
  5. Step 5: Solve for x
    x = 5,965,902,149.65/76,570.54
  6. Step 6: Final answer
    x = 77,913.81

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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.