Home / 56,784.65-78,366.30-31,291.02

Finding the Fourth Proportional to 56,784.65, 78,366.30 and 31,291.02

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Solution

The fourth proportional to 56,784.65, 78,366.30 and 31,291.02 is: 43,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.65 : 78,366.30 = 31,291.02 : x
  2. Step 2: Convert to fraction form
    56,784.65/78,366.30 = 31,291.02/x
  3. Step 3: Cross multiply
    56,784.65x = 78,366.30 × 31,291.02
  4. Step 4: Simplify right side
    56,784.65x = 2,452,161,500.09
  5. Step 5: Solve for x
    x = 2,452,161,500.09/56,784.65
  6. Step 6: Final answer
    x = 43,183.53

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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.