Home / 57,151.19-78,865.89-31,655.83

Finding the Fourth Proportional to 57,151.19, 78,865.89 and 31,655.83

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Solution

The fourth proportional to 57,151.19, 78,865.89 and 31,655.83 is: 43,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.19 : 78,865.89 = 31,655.83 : x
  2. Step 2: Convert to fraction form
    57,151.19/78,865.89 = 31,655.83/x
  3. Step 3: Cross multiply
    57,151.19x = 78,865.89 × 31,655.83
  4. Step 4: Simplify right side
    57,151.19x = 2,496,565,206.64
  5. Step 5: Solve for x
    x = 2,496,565,206.64/57,151.19
  6. Step 6: Final answer
    x = 43,683.52

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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.