Home / 57,113.76-78,817.44-31,963.20

Finding the Fourth Proportional to 57,113.76, 78,817.44 and 31,963.20

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Solution

The fourth proportional to 57,113.76, 78,817.44 and 31,963.20 is: 44,109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.76 : 78,817.44 = 31,963.20 : x
  2. Step 2: Convert to fraction form
    57,113.76/78,817.44 = 31,963.20/x
  3. Step 3: Cross multiply
    57,113.76x = 78,817.44 × 31,963.20
  4. Step 4: Simplify right side
    57,113.76x = 2,519,257,598.21
  5. Step 5: Solve for x
    x = 2,519,257,598.21/57,113.76
  6. Step 6: Final answer
    x = 44,109.47

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1.5x scale

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.