Home / 57,126.76-78,834.86-31,976.26

Finding the Fourth Proportional to 57,126.76, 78,834.86 and 31,976.26

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Solution

The fourth proportional to 57,126.76, 78,834.86 and 31,976.26 is: 44,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,126.76 : 78,834.86 = 31,976.26 : x
  2. Step 2: Convert to fraction form
    57,126.76/78,834.86 = 31,976.26/x
  3. Step 3: Cross multiply
    57,126.76x = 78,834.86 × 31,976.26
  4. Step 4: Simplify right side
    57,126.76x = 2,520,843,980.42
  5. Step 5: Solve for x
    x = 2,520,843,980.42/57,126.76
  6. Step 6: Final answer
    x = 44,127.20

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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.