Home / 56,463.18-77,917.23-31,315.02

Finding the Fourth Proportional to 56,463.18, 77,917.23 and 31,315.02

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Solution

The fourth proportional to 56,463.18, 77,917.23 and 31,315.02 is: 43,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,463.18 : 77,917.23 = 31,315.02 : x
  2. Step 2: Convert to fraction form
    56,463.18/77,917.23 = 31,315.02/x
  3. Step 3: Cross multiply
    56,463.18x = 77,917.23 × 31,315.02
  4. Step 4: Simplify right side
    56,463.18x = 2,439,979,615.79
  5. Step 5: Solve for x
    x = 2,439,979,615.79/56,463.18
  6. Step 6: Final answer
    x = 43,213.64

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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.