Home / 57,106.15-85,643.56-31,774.47

Finding the Fourth Proportional to 57,106.15, 85,643.56 and 31,774.47

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Solution

The fourth proportional to 57,106.15, 85,643.56 and 31,774.47 is: 47,652.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106.15 : 85,643.56 = 31,774.47 : x
  2. Step 2: Convert to fraction form
    57,106.15/85,643.56 = 31,774.47/x
  3. Step 3: Cross multiply
    57,106.15x = 85,643.56 × 31,774.47
  4. Step 4: Simplify right side
    57,106.15x = 2,721,278,727.91
  5. Step 5: Solve for x
    x = 2,721,278,727.91/57,106.15
  6. Step 6: Final answer
    x = 47,652.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.